diff --git a/package-lock.json b/package-lock.json
index 2e3b140..d0442da 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1124,9 +1124,9 @@
             }
         },
         "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 1cb3595..e49b4f7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -779,8 +779,8 @@ accepts@~1.3.4, accepts@~1.3.5, accepts@~1.3.7:
     negotiator "0.6.2"
 
 acorn@^6.2.1:
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.3.0.tgz#0087509119ffa4fc0a0041d1e93a417e68cb856e"
+  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"