diff --git a/.github/workflows/release-pypi.yml b/.github/workflows/release-pypi.yml
index d09aeb9adc..4d824906b8 100644
--- a/.github/workflows/release-pypi.yml
+++ b/.github/workflows/release-pypi.yml
@@ -20,6 +20,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        # fetch unshallow so commit hash matches github release.
+        # see https://github.com/vyperlang/vyper/blob/8f9a8cac49aafb3fbc9dde78f0f6125c390c32f0/.github/workflows/build.yml#L27-L32
+        fetch-depth: 0
 
     - name: Python
       uses: actions/setup-python@v5