diff --git a/stack.yaml b/stack.yaml
index f4dc5c9ae..5319eb0a7 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -67,7 +67,7 @@ extra-deps:
     commit: 843683d024f767de236f74d24a3348f69181a720
 
   - git: https://gitlab.ifi.lmu.de/uni2work/haskell/yesod.git
-    commit: cb75192e0c5490246ae2cbcc2a00e7985cf2aadb
+    commit: cb75192e0c5490246ae2cbcc2a00e7985cf2aadb # <- references debug with trace; master ref: cb75192e0c5490246ae2cbcc2a00e7985cf2aadb
     subdirs:
       - yesod-core
       - yesod-static