diff --git a/package.json b/package.json
index 21f4e89..4359f13 100644
--- a/package.json
+++ b/package.json
@@ -33,8 +33,8 @@
     "@aureooms/js-itertools": "4.1.0",
     "@aureooms/js-number": "3.1.0",
     "@aureooms/js-uint32": "1.0.1",
-    "@babel/cli": "7.11.5",
-    "@babel/core": "7.11.5",
+    "@babel/cli": "7.11.6",
+    "@babel/core": "7.11.6",
     "@babel/polyfill": "7.11.5",
     "@babel/preset-env": "7.11.5",
     "@babel/register": "7.11.5",
diff --git a/yarn.lock b/yarn.lock
index c4c08d9..0e56e78 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -42,10 +42,10 @@
   resolved "https://registry.yarnpkg.com/@aureooms/js-uint32/-/js-uint32-1.0.1.tgz#3de266aa82d646435e7720f6f7ffb82a3fc9ff82"
   integrity sha512-2BO35e/hrheRc52qKthMOWB5QPqDH7Rftmj24Sgx26mhzakXyqHbcOErCfuCYy0nsWO1V78RlWesY56maHOSVw==
 
-"@babel/cli@7.11.5":
-  version "7.11.5"
-  resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.11.5.tgz#4f51663f393d950b41f4c7ba41f3f7c2a595a295"
-  integrity sha512-0umMDxxdEZ98EMZtS9Wgnaf4NdgqBcQHaGYaMfAmP+ZicVglZ2+QZwoHNacfnUq4hCmC1V7Ap5Phq7FInpWrWg==
+"@babel/cli@7.11.6":
+  version "7.11.6"
+  resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.11.6.tgz#1fcbe61c2a6900c3539c06ee58901141f3558482"
+  integrity sha512-+w7BZCvkewSmaRM6H4L2QM3RL90teqEIHDIFXAmrW33+0jhlymnDAEdqVeCZATvxhQuio1ifoGVlJJbIiH9Ffg==
   dependencies:
     commander "^4.0.1"
     convert-source-map "^1.1.0"
@@ -54,7 +54,7 @@
     lodash "^4.17.19"
     make-dir "^2.1.0"
     slash "^2.0.0"
-    source-map "^0.6.1"
+    source-map "^0.5.0"
   optionalDependencies:
     chokidar "^2.1.8"
 
@@ -90,13 +90,13 @@
     invariant "^2.2.4"
     semver "^5.5.0"
 
-"@babel/core@7.11.5":
-  version "7.11.5"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.11.5.tgz#6ad96e2f71899ea3f9b651f0a911e85205d1ff6d"
-  integrity sha512-fsEANVOcZHzrsV6dMVWqpSeXClq3lNbYrfFGme6DE25FQWe7pyeYpXyx9guqUnpy466JLzZ8z4uwSr2iv60V5Q==
+"@babel/core@7.11.6":
+  version "7.11.6"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.11.6.tgz#3a9455dc7387ff1bac45770650bc13ba04a15651"
+  integrity sha512-Wpcv03AGnmkgm6uS6k8iwhIwTrcP0m17TL1n1sy7qD0qelDu4XNeW0dN0mHfa+Gei211yDaLoEe/VlbXQzM4Bg==
   dependencies:
     "@babel/code-frame" "^7.10.4"
-    "@babel/generator" "^7.11.5"
+    "@babel/generator" "^7.11.6"
     "@babel/helper-module-transforms" "^7.11.0"
     "@babel/helpers" "^7.10.4"
     "@babel/parser" "^7.11.5"
@@ -110,7 +110,7 @@
     lodash "^4.17.19"
     resolve "^1.3.2"
     semver "^5.4.1"
-    source-map "^0.6.1"
+    source-map "^0.5.0"
 
 "@babel/core@^7.7.5":
   version "7.9.6"
@@ -153,6 +153,15 @@
     jsesc "^2.5.1"
     source-map "^0.6.1"
 
+"@babel/generator@^7.11.6":
+  version "7.11.6"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.11.6.tgz#b868900f81b163b4d464ea24545c61cbac4dc620"
+  integrity sha512-DWtQ1PV3r+cLbySoHrwn9RWEgKMBLLma4OBQloPRyDYvc5msJM9kvTLo1YnlJd1P/ZuKbdli3ijr5q3FvAF3uA==
+  dependencies:
+    "@babel/types" "^7.11.5"
+    jsesc "^2.5.1"
+    source-map "^0.5.0"
+
 "@babel/generator@^7.9.6":
   version "7.9.6"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.9.6.tgz#5408c82ac5de98cda0d77d8124e99fa1f2170a43"