diff --git a/.github/workflows/build-deterministic-runtime.yml b/.github/workflows/build-deterministic-runtime.yml
index de1710de..adca4c45 100644
--- a/.github/workflows/build-deterministic-runtime.yml
+++ b/.github/workflows/build-deterministic-runtime.yml
@@ -37,7 +37,7 @@ jobs:
           BUILD_OPTS: "--features on-chain-release-build"
         with:
           chain: ${{ matrix.runtime }}
-          tag: 1.81
+          tag: 1.81.0
 
       - name: Store srtool digest to disk
         run: |