diff --git a/validator/package-lock.json b/validator/package-lock.json
index 70e1dbd2b7903..a2a5aba3dfbca 100644
--- a/validator/package-lock.json
+++ b/validator/package-lock.json
@@ -167,45 +167,45 @@
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-        "google-closure-compiler-linux": "^20210406.0.0",
-        "google-closure-compiler-osx": "^20210406.0.0",
-        "google-closure-compiler-windows": "^20210406.0.0",
+        "google-closure-compiler-java": "^20210505.0.0",
+        "google-closure-compiler-linux": "^20210505.0.0",
+        "google-closure-compiler-osx": "^20210505.0.0",
+        "google-closure-compiler-windows": "^20210505.0.0",
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+      "resolved": "https://registry.npmjs.org/google-closure-compiler-osx/-/google-closure-compiler-osx-20210505.0.0.tgz",
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-      "version": "20210406.0.0",
-      "resolved": "https://registry.npmjs.org/google-closure-compiler-windows/-/google-closure-compiler-windows-20210406.0.0.tgz",
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diff --git a/validator/package.json b/validator/package.json
index 871e85d655cf8..f06fc517b1646 100644
--- a/validator/package.json
+++ b/validator/package.json
@@ -12,7 +12,7 @@
     "preinstall": "node ../build-system/common/check-package-manager.js"
   },
   "devDependencies": {
-    "google-closure-compiler": "20210406.0.0",
+    "google-closure-compiler": "20210505.0.0",
     "google-closure-library": "20210406.0.0",
     "jasmine": "3.7.0",
     "jasmine-console-reporter": "3.1.0"