diff --git a/yarn.lock b/yarn.lock
index f5209e9..eeb25a2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1717,9 +1717,9 @@ acorn-walk@^6.1.1:
   integrity sha512-7evsyfH1cLOCdAzZAd43Cic04yKydNx0cF+7tiA19p1XnLLPU4dpCQOqpjqwokFe//vS0QqfqqjCS2JkiIs0cA==
 
 acorn@^6.0.7, acorn@^6.2.1:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.0.tgz#b659d2ffbafa24baf5db1cdbb2c94a983ecd2784"
-  integrity sha512-gac8OEcQ2Li1dxIEWGZzsp2BitJxwkwcOm0zHAJLcPJaVvm58FRnk6RkuLRpU1EujipU2ZFODv2P9DLMfnV8mw==
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.1.tgz#531e58ba3f51b9dacb9a6646ca4debf5b14ca474"
+  integrity sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==
 
 acorn@^7.1.0:
   version "7.1.0"
@@ -5819,7 +5819,7 @@ node-object-hash@^1.2.0:
   resolved "https://registry.yarnpkg.com/node-object-hash/-/node-object-hash-1.4.2.tgz#385833d85b229902b75826224f6077be969a9e94"
   integrity sha512-UdS4swXs85fCGWWf6t6DMGgpN/vnlKeSGEQ7hJcrs7PBFoxoKLmibc3QRb7fwiYsjdL7PX8iI/TMSlZ90dgHhQ==
 
-node-pre-gyp@*, node-pre-gyp@^0.14.0:
+node-pre-gyp@^0.14.0:
   version "0.14.0"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.14.0.tgz#9a0596533b877289bcad4e143982ca3d904ddc83"
   integrity sha512-+CvDC7ZttU/sSt9rFjix/P05iS43qHCOOGzcr3Ry99bXG7VX953+vFyEuph/tfqoYu8dttBkE86JSKBO2OzcxA==