diff --git a/packages/core/package.json b/packages/core/package.json
index 8849343e24..c5d3dbeb40 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -69,7 +69,7 @@
     "inquirer": "~7.3.2",
     "lodash.flatmap": "~4.5.0",
     "lodash.groupby": "~4.6.0",
-    "log4js": "~6.2.1",
+    "log4js": "~6.4.0",
     "minimatch": "~3.0.4",
     "mkdirp": "~1.0.3",
     "mutation-testing-elements": "~1.5.2",