diff --git a/package-lock.json b/package-lock.json
index 55c88fd9cc61..04728ccaab91 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -60,7 +60,7 @@
         "redux": "3.7.2",
         "redux-thunk": "2.2.0",
         "requirejs": "2.3.6",
-        "rtlcss": "2.2.1",
+        "rtlcss": "2.6.2",
         "sass": "^1.54.8",
         "sass-loader": "^14.1.1",
         "scriptjs": "2.5.9",
@@ -1838,6 +1838,18 @@
       "integrity": "sha512-0hYQ8SB4Db5zvZB4axdMHGwEaQjkZzFjQiN9LVYvIFB2nSUHW9tYpxWriPrWDASIxiaXax83REcLxuSdnGPZtw==",
       "dev": true
     },
+    "node_modules/@choojs/findup": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@choojs/findup/-/findup-0.2.1.tgz",
+      "integrity": "sha512-YstAqNb0MCN8PjdLCDfRsBcGVRN41f3vgLvaI0IrIcBp4AqILRSS0DeWNGkicC+f/zRIPJLc+9RURVSepwvfBw==",
+      "license": "MIT",
+      "dependencies": {
+        "commander": "^2.15.1"
+      },
+      "bin": {
+        "findup": "bin/findup.js"
+      }
+    },
     "node_modules/@cnakazawa/watch": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/@cnakazawa/watch/-/watch-1.0.4.tgz",
@@ -10253,37 +10265,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/findup": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/findup/-/findup-0.1.5.tgz",
-      "integrity": "sha512-Udxo3C9A6alt2GZ2MNsgnIvX7De0V3VGxeP/x98NSVgSlizcDHdmJza61LI7zJy4OEtSiJyE72s0/+tBl5/ZxA==",
-      "dependencies": {
-        "colors": "~0.6.0-1",
-        "commander": "~2.1.0"
-      },
-      "bin": {
-        "findup": "bin/findup.js"
-      },
-      "engines": {
-        "node": ">=0.6"
-      }
-    },
-    "node_modules/findup/node_modules/colors": {
-      "version": "0.6.2",
-      "resolved": "https://registry.npmjs.org/colors/-/colors-0.6.2.tgz",
-      "integrity": "sha512-OsSVtHK8Ir8r3+Fxw/b4jS1ZLPXkV6ZxDRJQzeD7qo0SqMXWrHDM71DgYzPMHY8SFJ0Ao+nNU2p1MmwdzKqPrw==",
-      "engines": {
-        "node": ">=0.1.90"
-      }
-    },
-    "node_modules/findup/node_modules/commander": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.1.0.tgz",
-      "integrity": "sha512-J2wnb6TKniXNOtoHS8TSrG9IOQluPrsmyAJ8oCUJOBmv+uLBCyPYAZkD2jFvw2DCzIXNnISIM01NIvr35TkBMQ==",
-      "engines": {
-        "node": ">= 0.6.x"
-      }
-    },
     "node_modules/flat": {
       "version": "5.0.2",
       "resolved": "https://registry.npmjs.org/flat/-/flat-5.0.2.tgz",
@@ -21056,14 +21037,15 @@
       }
     },
     "node_modules/rtlcss": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/rtlcss/-/rtlcss-2.2.1.tgz",
-      "integrity": "sha512-JjQ5DlrmwiItAjlmhoxrJq5ihgZcE0wMFxt7S17bIrt4Lw0WwKKFk+viRhvodB/0falyG/5fiO043ZDh6/aqTw==",
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/rtlcss/-/rtlcss-2.6.2.tgz",
+      "integrity": "sha512-06LFAr+GAPo+BvaynsXRfoYTJvSaWRyOhURCQ7aeI1MKph9meM222F+Zkt3bDamyHHJuGi3VPtiRkpyswmQbGA==",
+      "license": "MIT",
       "dependencies": {
-        "chalk": "^2.3.0",
-        "findup": "^0.1.5",
+        "@choojs/findup": "^0.2.1",
+        "chalk": "^2.4.2",
         "mkdirp": "^0.5.1",
-        "postcss": "^6.0.14",
+        "postcss": "^6.0.23",
         "strip-json-comments": "^2.0.0"
       },
       "bin": {
@@ -21074,6 +21056,7 @@
       "version": "6.0.23",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-6.0.23.tgz",
       "integrity": "sha512-soOk1h6J3VMTZtVeVpv15/Hpdl2cBLX3CAw4TAbkpTJiNPk9YP/zWcD1ND+xEtvyuuvKzbxliTOIyvkSeSJ6ag==",
+      "license": "MIT",
       "dependencies": {
         "chalk": "^2.4.1",
         "source-map": "^0.6.1",
@@ -21087,6 +21070,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
       "integrity": "sha512-4gB8na07fecVVkOI6Rs4e7T6NOTki5EmL7TUduTs6bu3EdnSycntVJ4re8kgZA+wx9IueI2Y11bfbgwtzuE0KQ==",
+      "license": "MIT",
       "engines": {
         "node": ">=0.10.0"
       }
diff --git a/package.json b/package.json
index 4ec5c0d143f3..d182d83d3151 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "redux": "3.7.2",
     "redux-thunk": "2.2.0",
     "requirejs": "2.3.6",
-    "rtlcss": "2.2.1",
+    "rtlcss": "2.6.2",
     "sass": "^1.54.8",
     "sass-loader": "^14.1.1",
     "scriptjs": "2.5.9",