diff --git a/testing/mozharness/mozharness.json b/testing/mozharness/mozharness.json
index 97a710d887f6..97f97e13ac39 100644
--- a/testing/mozharness/mozharness.json
+++ b/testing/mozharness/mozharness.json
@@ -1,4 +1,4 @@
 {
     "repo": "https://hg.mozilla.org/build/mozharness",
-    "revision": "4f1cf3369955"
+    "revision": "23dee28169d6"
 }