diff --git a/package-lock.json b/package-lock.json
index 1a3bd13..d0f65dc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1123,9 +1123,9 @@
             }
         },
         "acorn": {
-            "version": "6.3.0",
-            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
-            "integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA==",
+            "version": "6.4.1",
+            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+            "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
             "dev": true
         },
         "adjust-sourcemap-loader": {
diff --git a/yarn.lock b/yarn.lock
index 1737e45..e1e545a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -745,8 +745,8 @@ acorn-dynamic-import@^4.0.0:
   resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz#482210140582a36b83c3e342e1cfebcaa9240948"
 
 acorn@^6.0.5:
-  version "6.1.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.1.1.tgz#7d25ae05bb8ad1f9b699108e1094ecd7884adc1f"
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.1.tgz#531e58ba3f51b9dacb9a6646ca4debf5b14ca474"
 
 adjust-sourcemap-loader@^1.1.0:
   version "1.2.0"