diff --git a/package-lock.json b/package-lock.json
index fe54ca72..f9750593 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "jaydata",
-  "version": "1.5.11",
+  "version": "1.5.13",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -87,9 +87,9 @@
       }
     },
     "acorn": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
-      "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo="
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg=="
     },
     "acorn-dynamic-import": {
       "version": "4.0.0",
@@ -104,6 +104,14 @@
       "dev": true,
       "requires": {
         "acorn": "^3.0.4"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "3.3.0",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+          "dev": true
+        }
       }
     },
     "acorn-node": {
@@ -8569,7 +8577,8 @@
                 "console-control-strings": {
                   "version": "1.1.0",
                   "bundled": true,
-                  "dev": true
+                  "dev": true,
+                  "optional": true
                 },
                 "gauge": {
                   "version": "2.6.0",
@@ -8610,6 +8619,7 @@
                       "version": "1.0.2",
                       "bundled": true,
                       "dev": true,
+                      "optional": true,
                       "requires": {
                         "code-point-at": "^1.0.0",
                         "is-fullwidth-code-point": "^1.0.0",
@@ -8620,6 +8630,7 @@
                           "version": "1.0.0",
                           "bundled": true,
                           "dev": true,
+                          "optional": true,
                           "requires": {
                             "number-is-nan": "^1.0.0"
                           },
@@ -8627,7 +8638,8 @@
                             "number-is-nan": {
                               "version": "1.0.0",
                               "bundled": true,
-                              "dev": true
+                              "dev": true,
+                              "optional": true
                             }
                           }
                         },
@@ -8635,6 +8647,7 @@
                           "version": "1.0.0",
                           "bundled": true,
                           "dev": true,
+                          "optional": true,
                           "requires": {
                             "number-is-nan": "^1.0.0"
                           },
@@ -8642,7 +8655,8 @@
                             "number-is-nan": {
                               "version": "1.0.0",
                               "bundled": true,
-                              "dev": true
+                              "dev": true,
+                              "optional": true
                             }
                           }
                         }
diff --git a/package.json b/package.json
index 5b4fb017..23c2c788 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "url": "http://jaydata.org"
   },
   "dependencies": {
-    "acorn": "^3.3.0",
+    "acorn": "^5.7.4",
     "atob": "^2.0.0",
     "btoa": "^1.1.2",
     "dot": "^1.0.3",