diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 027201b..490e036 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -27,6 +27,13 @@ jobs:
         uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           enable-cache: false
+      - name: Check tag matches package version
+        run: |
+          version=$(python3 -c "import tomllib; print(tomllib.load(open('pyproject.toml','rb'))['project']['version'])")
+          if [ "v${version}" != "${GITHUB_REF_NAME}" ]; then
+            echo "::error::Release tag ${GITHUB_REF_NAME} does not match pyproject.toml version ${version}"
+            exit 1
+          fi
       - name: Build package
         run: uv build
       - name: Publish package distributions to PyPI
diff --git a/pyproject.toml b/pyproject.toml
index 5e01d7a..7d80089 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ requires = [ "hatchling" ]
 
 [project]
 name = "cellcharter"
-version = "0.3.7"
+version = "0.3.8"
 description = "A Python package for the identification, characterization and comparison of spatial clusters from spatial -omics data."
 readme = "README.md"
 license = { file = "LICENSE" }