diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 24b3998e98..411a639fd2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -7,6 +7,9 @@ on:
 
 permissions: {}
 
+# Release paths never touch the Actions cache; enforced regardless of per-step settings.
+cache-mode: none
+
 jobs:
   build:
     name: Build