diff --git a/demo/demo.js b/demo/demo.js
index 655f3fcc..b92dea31 100644
--- a/demo/demo.js
+++ b/demo/demo.js
@@ -1,4 +1,4 @@
-import * as d3 from 'd3/build/d3';
+import * as d3 from 'd3';
 
 import eventDrops from '../src';
 import '../src/style.css';
@@ -34,7 +34,7 @@ const chart = eventDrops({
     },
     drop: {
         date: d => new Date(d.date),
-        onMouseOver: commit => {
+        onMouseOver: (ev, commit) => {
             tooltip
                 .transition()
                 .duration(200)
@@ -66,8 +66,8 @@ const chart = eventDrops({
                     </div>
                 `
                 )
-                .style('left', `${d3.event.pageX - 30}px`)
-                .style('top', `${d3.event.pageY + 20}px`);
+                .style('left', `${ev.pageX - 30}px`)
+                .style('top', `${ev.pageY + 20}px`);
         },
         onMouseOut: () => {
             tooltip
diff --git a/package-lock.json b/package-lock.json
index 80480a0f..47b24eb5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,8 +10,8 @@
       "integrity": "sha512-bPHp6Ji8b41szTOcaP63VlnbbO5Ny6dwAATtY6JTjh5N2OLrb5Qk/Th5cRkRQhkWCt+EJsYrNB0MiL+Gpn6e3g==",
       "dev": true,
       "requires": {
-        "call-me-maybe": "1.0.1",
-        "glob-to-regexp": "0.3.0"
+        "call-me-maybe": "^1.0.1",
+        "glob-to-regexp": "^0.3.0"
       }
     },
     "@nodelib/fs.stat": {
@@ -26,7 +26,7 @@
       "integrity": "sha512-MI4Xx6LHs4Webyvi6EbspgyAb4D2Q2VtnCQ1blOJcoLS6mVa8lNN2rkIy1CVxfTUpoyIbCTkXES1rLXztFD1lg==",
       "dev": true,
       "requires": {
-        "any-observable": "0.3.0"
+        "any-observable": "^0.3.0"
       }
     },
     "@sindresorhus/is": {
@@ -35,6 +35,28 @@
       "integrity": "sha512-ONhaKPIufzzrlNbqtWFFd+jlnemX6lJAgq9ZeiZtS7I1PIf/la7CW4m83rTXRnVnsMbW2k56pGYu7AUFJD9Pow==",
       "dev": true
     },
+    "@types/glob": {
+      "version": "7.1.3",
+      "resolved": "https://registry.npmjs.org/@types/glob/-/glob-7.1.3.tgz",
+      "integrity": "sha512-SEYeGAIQIQX8NN6LDKprLjbrd5dARM5EXsd8GI/A5l0apYI1fGMWgPHSe4ZKL4eozlAyI+doUE9XbYS4xCkQ1w==",
+      "dev": true,
+      "requires": {
+        "@types/minimatch": "*",
+        "@types/node": "*"
+      }
+    },
+    "@types/minimatch": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.4.tgz",
+      "integrity": "sha512-1z8k4wzFnNjVK/tlxvrWuK5WMt6mydWWP7+zvH5eFep4oj+UkrfiJTRtjCeBXNpwaA/FYqqtb4/QS4ianFpIRA==",
+      "dev": true
+    },
+    "@types/node": {
+      "version": "14.14.35",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.35.tgz",
+      "integrity": "sha512-Lt+wj8NVPx0zUmUwumiVXapmaLUcAk3yPuHCFVXras9k5VT9TdhJqKqGVUQCD60OTMCl0qxJ57OiTL0Mic3Iag==",
+      "dev": true
+    },
     "@webassemblyjs/ast": {
       "version": "1.5.9",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.5.9.tgz",
@@ -44,8 +66,8 @@
         "@webassemblyjs/helper-module-context": "1.5.9",
         "@webassemblyjs/helper-wasm-bytecode": "1.5.9",
         "@webassemblyjs/wast-parser": "1.5.9",
-        "debug": "3.1.0",
-        "mamacro": "0.0.3"
+        "debug": "^3.1.0",
+        "mamacro": "^0.0.3"
       },
       "dependencies": {
         "debug": {
@@ -77,7 +99,7 @@
       "integrity": "sha512-WYkys6y33viEY23tHJ+KkSd9yHZBd54Sy6gcSgwLGPP1or9pLqWBrjWWATHuDuIkpvSJSt/+3qjAV6zHd1nS0g==",
       "dev": true,
       "requires": {
-        "debug": "3.1.0"
+        "debug": "^3.1.0"
       },
       "dependencies": {
         "debug": {
@@ -128,7 +150,7 @@
         "@webassemblyjs/helper-buffer": "1.5.9",
         "@webassemblyjs/helper-wasm-bytecode": "1.5.9",
         "@webassemblyjs/wasm-gen": "1.5.9",
-        "debug": "3.1.0"
+        "debug": "^3.1.0"
       },
       "dependencies": {
         "debug": {
@@ -148,7 +170,7 @@
       "integrity": "sha512-mhetZBDnpV3VYqZb5Aail9X01VyIqDDZrNYdYj8bfx/PsVPG2znX90wRyVNTeqC5ylqHCgGkJ63bPaPEyINfsw==",
       "dev": true,
       "requires": {
-        "ieee754": "1.1.11"
+        "ieee754": "^1.1.11"
       },
       "dependencies": {
         "ieee754": {
@@ -165,7 +187,7 @@
       "integrity": "sha512-oZ3eUB9EViUtiuMwW/xeYamXgfFS2cmXl6aUIYBfpXJQ5v5aOC8ZuPpz2/LqlgNlT8ThpyFd6kfgkYVwKwkGvQ==",
       "dev": true,
       "requires": {
-        "leb": "0.3.0"
+        "leb": "^0.3.0"
       }
     },
     "@webassemblyjs/wasm-edit": {
@@ -182,7 +204,7 @@
         "@webassemblyjs/wasm-opt": "1.5.9",
         "@webassemblyjs/wasm-parser": "1.5.9",
         "@webassemblyjs/wast-printer": "1.5.9",
-        "debug": "3.1.0"
+        "debug": "^3.1.0"
       },
       "dependencies": {
         "debug": {
@@ -218,7 +240,7 @@
         "@webassemblyjs/helper-buffer": "1.5.9",
         "@webassemblyjs/wasm-gen": "1.5.9",
         "@webassemblyjs/wasm-parser": "1.5.9",
-        "debug": "3.1.0"
+        "debug": "^3.1.0"
       },
       "dependencies": {
         "debug": {
@@ -257,8 +279,8 @@
         "@webassemblyjs/helper-api-error": "1.5.9",
         "@webassemblyjs/helper-code-frame": "1.5.9",
         "@webassemblyjs/helper-fsm": "1.5.9",
-        "long": "3.2.0",
-        "mamacro": "0.0.3"
+        "long": "^3.2.0",
+        "mamacro": "^0.0.3"
       }
     },
     "@webassemblyjs/wast-printer": {
@@ -269,7 +291,7 @@
       "requires": {
         "@webassemblyjs/ast": "1.5.9",
         "@webassemblyjs/wast-parser": "1.5.9",
-        "long": "3.2.0"
+        "long": "^3.2.0"
       }
     },
     "abab": {
@@ -278,10 +300,37 @@
       "integrity": "sha1-X6rZwsB/YN12dw9xzwJbYqY8/U4=",
       "dev": true
     },
+    "accepts": {
+      "version": "1.3.7",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+      "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
+      "dev": true,
+      "requires": {
+        "mime-types": "~2.1.24",
+        "negotiator": "0.6.2"
+      },
+      "dependencies": {
+        "mime-db": {
+          "version": "1.46.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.46.0.tgz",
+          "integrity": "sha512-svXaP8UQRZ5K7or+ZmfNhg2xX3yKDMUzqadsSqi4NCH/KomcH75MAMYAGVlvXn4+b/xOPhS3I2uHKRUzvjY7BQ==",
+          "dev": true
+        },
+        "mime-types": {
+          "version": "2.1.29",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.29.tgz",
+          "integrity": "sha512-Y/jMt/S5sR9OaqteJtslsFZKWOIIqMACsJSiHghlCAyhf7jfVYjKBmLiX8OgpWeW+fjJ2b+Az69aPFPkUOY6xQ==",
+          "dev": true,
+          "requires": {
+            "mime-db": "1.46.0"
+          }
+        }
+      }
+    },
     "acorn": {
-      "version": "5.5.3",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.5.3.tgz",
-      "integrity": "sha512-jd5MkIUlbbmb07nXH0DT3y7rDVtkzDi4XZOUVWAer8ajmF/DTSSbl5oNFyDOl/OXA33Bl79+ypHhl2pN20VeOQ==",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-globals": {
@@ -290,7 +339,7 @@
       "integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
       "dev": true,
       "requires": {
-        "acorn": "4.0.13"
+        "acorn": "^4.0.4"
       },
       "dependencies": {
         "acorn": {
@@ -307,7 +356,7 @@
       "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
       "dev": true,
       "requires": {
-        "acorn": "3.3.0"
+        "acorn": "^3.0.4"
       },
       "dependencies": {
         "acorn": {
@@ -324,48 +373,32 @@
       "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
       "dev": true,
       "requires": {
-        "co": "4.6.0",
-        "json-stable-stringify": "1.0.1"
+        "co": "^4.6.0",
+        "json-stable-stringify": "^1.0.1"
       }
     },
+    "ajv-errors": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/ajv-errors/-/ajv-errors-1.0.1.tgz",
+      "integrity": "sha512-DCRfO/4nQ+89p/RK43i8Ezd41EqdGIU4ld7nGF8OQ14oc/we5rEntLCUa7+jrn3nn83BosfwZA0wb4pon2o8iQ==",
+      "dev": true
+    },
     "ajv-keywords": {
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-1.5.1.tgz",
       "integrity": "sha1-MU3QpLM2j609/NxU7eYXG4htrzw=",
       "dev": true
     },
-    "align-text": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
-      "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
-      "dev": true,
-      "requires": {
-        "kind-of": "3.2.2",
-        "longest": "1.0.1",
-        "repeat-string": "1.6.1"
-      },
-      "dependencies": {
-        "kind-of": {
-          "version": "3.2.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
-          "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
-          "dev": true,
-          "requires": {
-            "is-buffer": "1.1.6"
-          }
-        }
-      }
-    },
     "alphanum-sort": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/alphanum-sort/-/alphanum-sort-1.0.2.tgz",
       "integrity": "sha1-l6ERlkmyEa0zaR2fn0hqjsn74KM=",
       "dev": true
     },
-    "amdefine": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
-      "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
+    "ansi-colors": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.4.tgz",
+      "integrity": "sha512-hHUXGagefjN2iRrID63xckIvotOXOojhQKWIPUZ4mNUZ9nLZW+7FMNoE1lOkEhNWYsx/7ysGIuJYCiMAA9FnrA==",
       "dev": true
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@@ -404,8 +437,8 @@
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       "dev": true,
       "requires": {
-        "micromatch": "3.1.9",
-        "normalize-path": "2.1.1"
+        "micromatch": "^3.1.4",
+        "normalize-path": "^2.1.1"
       },
       "dependencies": {
         "normalize-path": {
@@ -414,7 +447,7 @@
           "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
           "dev": true,
           "requires": {
-            "remove-trailing-separator": "1.1.0"
+            "remove-trailing-separator": "^1.0.1"
           }
         }
       }
@@ -431,7 +464,7 @@
       "integrity": "sha1-126/jKlNJ24keja61EpLdKthGZE=",
       "dev": true,
       "requires": {
-        "default-require-extensions": "1.0.0"
+        "default-require-extensions": "^1.0.0"
       }
     },
     "aproba": {
@@ -446,7 +479,7 @@
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "dev": true,
       "requires": {
-        "sprintf-js": "1.0.3"
+        "sprintf-js": "~1.0.2"
       }
     },
     "aria-query": {
@@ -488,35 +521,19 @@
       "integrity": "sha1-jCpe8kcv2ep0KwTHenUJO6J1fJM=",
       "dev": true
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-    "array-find-index": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/array-find-index/-/array-find-index-1.0.2.tgz",
-      "integrity": "sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=",
-      "dev": true
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-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
-      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=",
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-2.1.2.tgz",
+      "integrity": "sha512-hNfzcOV8W4NdualtqBFPyVO+54DSJuZGY9qT4pRroB6S9e3iiido2ISIC5h9R2sPJ8H3FHCIiEnsv1lPXO3KtQ==",
       "dev": true
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-    "array-includes": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.0.3.tgz",
-      "integrity": "sha1-GEtI9i2S10UrsxsyMWXH+L0CJm0=",
-      "dev": true,
-      "requires": {
-        "define-properties": "1.1.2",
-        "es-abstract": "1.11.0"
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       "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
       "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
       "dev": true,
       "requires": {
-        "array-uniq": "1.0.3"
+        "array-uniq": "^1.0.1"
       }
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     "array-uniq": {
@@ -537,8 +554,8 @@
       "integrity": "sha1-VWpcU2LAhkgyPdrrnenRS8GGTJA=",
       "dev": true,
       "requires": {
-        "define-properties": "1.1.2",
-        "es-abstract": "1.11.0"
+        "define-properties": "^1.1.2",
+        "es-abstract": "^1.7.0"
       }
     },
     "arrify": {
@@ -559,9 +576,9 @@
       "integrity": "sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==",
       "dev": true,
       "requires": {
-        "bn.js": "4.11.8",
-        "inherits": "2.0.3",
-        "minimalistic-assert": "1.0.0"
+        "bn.js": "^4.0.0",
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0"
       }
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@@ -603,13 +620,13 @@
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       "dev": true,
       "requires": {
-        "lodash": "4.17.10"
+        "lodash": "^4.17.10"
       },
       "dependencies": {
         "lodash": {
-          "version": "4.17.10",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.10.tgz",
-          "integrity": "sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==",
+          "version": "4.17.21",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+          "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
           "dev": true
         }
       }
@@ -620,6 +637,12 @@
       "integrity": "sha1-GdOGodntxufByF04iu28xW0zYC0=",
       "dev": true
     },
+    "async-limiter": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
+      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -627,9 +650,9 @@
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-      "resolved": "https://registry.npmjs.org/atob/-/atob-2.0.3.tgz",
-      "integrity": "sha1-GcenYEc3dEaPILLS0DNyrX1Mv10=",
+      "version": "2.1.2",
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@@ -638,12 +661,12 @@
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       "dev": true,
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-        "normalize-range": "0.1.2",
-        "num2fraction": "1.2.2",
-        "postcss": "5.2.18",
-        "postcss-value-parser": "3.3.0"
+        "browserslist": "^1.7.6",
+        "caniuse-db": "^1.0.30000634",
+        "normalize-range": "^0.1.2",
+        "num2fraction": "^1.2.2",
+        "postcss": "^5.2.16",
+        "postcss-value-parser": "^3.2.3"
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@@ -664,9 +687,9 @@
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       "dev": true,
       "requires": {
-        "chalk": "1.1.3",
-        "esutils": "2.0.2",
-        "js-tokens": "3.0.2"
+        "chalk": "^1.1.3",
+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.2"
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@@ -675,25 +698,25 @@
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-        "babel-generator": "6.26.1",
-        "babel-helpers": "6.24.1",
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-        "babel-register": "6.26.0",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0",
-        "babylon": "6.18.0",
-        "convert-source-map": "1.5.1",
-        "debug": "2.6.9",
-        "json5": "0.5.1",
-        "lodash": "4.17.5",
-        "minimatch": "3.0.4",
-        "path-is-absolute": "1.0.1",
-        "private": "0.1.8",
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@@ -4911,7 +5188,7 @@
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       "dev": true,
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-        "iferr": "0.1.5",
-        "imurmurhash": "0.1.4",
-        "readable-stream": "2.3.5"
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@@ -5020,21 +5298,23 @@
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@@ -5098,7 +5381,7 @@
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-            "strip-ansi": "3.0.1",
-            "wide-align": "1.1.2"
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@@ -5129,12 +5412,12 @@
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@@ -5149,7 +5432,7 @@
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@@ -5158,7 +5441,7 @@
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@@ -5186,8 +5470,9 @@
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@@ -5224,13 +5512,14 @@
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@@ -5247,9 +5536,9 @@
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-            "sax": "1.2.4"
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@@ -5258,16 +5547,16 @@
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-            "rc": "1.2.7",
-            "rimraf": "2.6.2",
-            "semver": "5.5.0",
-            "tar": "4.4.1"
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@@ -5276,8 +5565,8 @@
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@@ -5292,8 +5581,8 @@
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@@ -5302,16 +5591,17 @@
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-            "gauge": "2.7.4",
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@@ -5456,15 +5749,16 @@
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-            "safe-buffer": "5.1.1",
-            "yallist": "3.0.2"
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@@ -5500,18 +5794,20 @@
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@@ -5533,7 +5829,7 @@
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       "dev": true,
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@@ -5542,6 +5838,34 @@
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       "dev": true
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+        "has": "^1.0.3",
+        "has-symbols": "^1.0.1"
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+          "dev": true,
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+        "has-symbols": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.2.tgz",
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+        }
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@@ -5566,7 +5890,7 @@
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       "dev": true,
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@@ -5575,8 +5899,8 @@
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-        "got": "7.1.0",
-        "is-plain-obj": "1.1.0"
+        "got": "^7.0.0",
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@@ -5585,20 +5909,20 @@
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-            "timed-out": "4.0.1",
-            "url-parse-lax": "1.0.0",
-            "url-to-options": "1.0.1"
+            "decompress-response": "^3.2.0",
+            "duplexer3": "^0.1.4",
+            "get-stream": "^3.0.0",
+            "is-plain-obj": "^1.1.0",
+            "is-retry-allowed": "^1.0.0",
+            "is-stream": "^1.0.0",
+            "isurl": "^1.0.0-alpha5",
+            "lowercase-keys": "^1.0.0",
+            "p-cancelable": "^0.3.0",
+            "p-timeout": "^1.1.1",
+            "safe-buffer": "^5.0.1",
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@@ -5607,7 +5931,7 @@
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           "dev": true,
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-            "p-finally": "1.0.0"
+            "p-finally": "^1.0.0"
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@@ -5616,7 +5940,7 @@
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           "dev": true,
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-            "prepend-http": "1.0.4"
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@@ -5627,7 +5951,7 @@
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       "dev": true,
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-        "gh-got": "6.0.0"
+        "gh-got": "^6.0.0"
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@@ -5636,58 +5960,229 @@
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           }
         },
         "path-type": {
@@ -15311,7 +16178,7 @@
           "integrity": "sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==",
           "dev": true,
           "requires": {
-            "pify": "3.0.0"
+            "pify": "^3.0.0"
           }
         },
         "pify": {
@@ -15326,9 +16193,9 @@
           "integrity": "sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=",
           "dev": true,
           "requires": {
-            "load-json-file": "4.0.0",
-            "normalize-package-data": "2.4.0",
-            "path-type": "3.0.0"
+            "load-json-file": "^4.0.0",
+            "normalize-package-data": "^2.3.2",
+            "path-type": "^3.0.0"
           }
         },
         "read-pkg-up": {
@@ -15337,8 +16204,8 @@
           "integrity": "sha1-PtSWaF26D4/hGNBpHcUfSh/5bwc=",
           "dev": true,
           "requires": {
-            "find-up": "2.1.0",
-            "read-pkg": "3.0.0"
+            "find-up": "^2.0.0",
+            "read-pkg": "^3.0.0"
           }
         },
         "run-async": {
@@ -15347,7 +16214,7 @@
           "integrity": "sha1-A3GrSuC91yDUFm19/aZP96RFpsA=",
           "dev": true,
           "requires": {
-            "is-promise": "2.1.0"
+            "is-promise": "^2.1.0"
           }
         },
         "shelljs": {
@@ -15356,9 +16223,9 @@
           "integrity": "sha512-pRXeNrCA2Wd9itwhvLp5LZQvPJ0wU6bcjaTMywHHGX5XWhVN2nzSu7WV0q+oUY7mGK3mgSkDDzP3MgjqdyIgbQ==",
           "dev": true,
           "requires": {
-            "glob": "7.1.2",
-            "interpret": "1.1.0",
-            "rechoir": "0.6.2"
+            "glob": "^7.0.0",
+            "interpret": "^1.0.0",
+            "rechoir": "^0.6.2"
           }
         },
         "strip-bom": {
@@ -15373,7 +16240,7 @@
           "integrity": "sha512-zjaXglF5nnWpsq470jSv6P9DwPvgLkuapYmfDm3JWOm0vkNTVF2tI4UrN2r6jH1qM/uc/WtxYY1hYoA2dOKj5w==",
           "dev": true,
           "requires": {
-            "has-flag": "3.0.0"
+            "has-flag": "^3.0.0"
           }
         }
       }
diff --git a/package.json b/package.json
index b3e64929..2a348636 100644
--- a/package.json
+++ b/package.json
@@ -12,13 +12,13 @@
     "url": "https://github.com/marmelab/EventDrops"
   },
   "peerDependencies": {
-    "d3": "~4.7.0"
+    "d3": "~6.6.1"
   },
   "dependencies": {
     "d3-time-format": "^2.1.1",
     "date-fns": "^1.29.0",
     "debounce": "^1.1.0",
-    "lodash.defaultsdeep": "^4.6.0",
+    "lodash.defaultsdeep": "^4.6.1",
     "lodash.uniqby": "^4.7.0"
   },
   "devDependencies": {
@@ -31,7 +31,7 @@
     "babel-preset-stage-0": "^6.24.1",
     "configurable.js": "0.1.0",
     "css-loader": "^0.28.1",
-    "d3": "~4.7.0",
+    "d3": "^6.6.1",
     "eslint": "3.19.0",
     "eslint-config-airbnb": "14.1.0",
     "eslint-config-prettier": "^2.9.0",
@@ -56,7 +56,7 @@
     "style-loader": "^0.21.0",
     "webpack": "^4.10.2",
     "webpack-cli": "^2.1.4",
-    "webpack-dev-server": "^3.1.4"
+    "webpack-dev-server": "^3.11.2"
   },
   "bugs": {
     "url": "https://github.com/marmelab/EventDrops/issues"
diff --git a/src/zoom.js b/src/zoom.js
index d85b2e29..ed7502d2 100644
--- a/src/zoom.js
+++ b/src/zoom.js
@@ -15,7 +15,7 @@ export const getShiftedTransform = (
         .translate(labelsWidth + labelsPadding, 0); // put origin at its original position
 };
 
-export default (d3, svg, config, xScale, draw, getEvent) => {
+export default (d3, svg, config, xScale, draw) => {
     const {
         label: { width: labelsWidth, padding: labelsPadding },
         zoom: { onZoomStart, onZoom, onZoomEnd, minimumScale, maximumScale },
@@ -25,9 +25,9 @@ export default (d3, svg, config, xScale, draw, getEvent) => {
 
     zoom.on('zoom.start', onZoomStart).on('zoom.end', onZoomEnd);
 
-    zoom.on('zoom', args => {
+    zoom.on('zoom', (ev, args) => {
         const transform = getShiftedTransform(
-            getEvent().transform,
+            ev.transform,
             labelsWidth,
             labelsPadding,
             d3