diff --git a/packages/jest-runtime/src/transform.js b/packages/jest-runtime/src/transform.js
index f7dbe920dffc..29496ca1351c 100644
--- a/packages/jest-runtime/src/transform.js
+++ b/packages/jest-runtime/src/transform.js
@@ -68,6 +68,7 @@ const getCacheKey = (
         roots: config.roots,
         testMatch: config.testMatch,
         testRegex: config.testRegex,
+        transform: config.transform,
         transformIgnorePatterns: config.transformIgnorePatterns,
       }),
     );