diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7cb8de830c..515be87c25 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,6 +31,10 @@ jobs:
             # need to fetch unshallow so that setuptools_scm can infer the version
             fetch-depth: 0
 
+      # debug
+      - name: Git shorthash
+        run: git rev-parse --short HEAD
+
       - name: Python
         uses: actions/setup-python@v5
         with:
@@ -60,6 +64,10 @@ jobs:
             # need to fetch unshallow so that setuptools_scm can infer the version
             fetch-depth: 0
 
+      # debug
+      - name: Git shorthash
+        run: git rev-parse --short HEAD
+
       - name: Python
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/release-pypi.yml b/.github/workflows/release-pypi.yml
index d09aeb9adc..1511c61e51 100644
--- a/.github/workflows/release-pypi.yml
+++ b/.github/workflows/release-pypi.yml
@@ -20,6 +20,14 @@ 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
+
+    # debug
+    - name: Git shorthash
+      run: git rev-parse --short HEAD
 
     - name: Python
       uses: actions/setup-python@v5