diff --git a/.github/workflows/mutation.yml b/.github/workflows/mutation.yml
index a7fa8dd..21a3d7e 100644
--- a/.github/workflows/mutation.yml
+++ b/.github/workflows/mutation.yml
@@ -20,7 +20,7 @@ permissions:
   security-events: write # SARIF upload to code scanning
 
 env:
-  FLAWD_VERSION: v0.14.0 # pinned; bump deliberately
+  FLAWD_VERSION: v0.15.0 # pinned; bump deliberately
 
 jobs:
   mutation: