diff --git a/packages/angular_devkit/build_angular/src/webpack/configs/common.ts b/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
index 8a0013d93632..31c5a20f6471 100644
--- a/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
+++ b/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
@@ -532,7 +532,7 @@ function getCacheSettings(
         .update(JSON.stringify(wco.tsConfig))
         .update(JSON.stringify(wco.buildOptions))
         .update(supportedBrowsers.join(''))
-        .digest('base64'),
+        .digest('hex'),
     };
   }