diff --git a/.github/workflows/test_cellranger_atac.yaml b/.github/workflows/test_cellranger_atac.yaml
new file mode 100644
index 0000000..a8d45c6
--- /dev/null
+++ b/.github/workflows/test_cellranger_atac.yaml
@@ -0,0 +1,27 @@
+name: Test Spaceranger Version
+
+on:
+  push:
+    branches: [ main ]
+    paths:
+      - 'dockerhub_repos/cellranger-atac/**'
+
+jobs:
+  test_cellranger_version:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+      
+    - name: Validate version consistency
+      run: |
+          # Extract the expected version from the 'spaceranger --version' output
+          VERSION=$(docker run ccrsfifx/cellranger-atac:2.1.0 cellranger-atac --version | awk '{print $2}')
+          # Compare with the Docker Hub tag
+          if [[ "$VERSIONV" != "cellranger-atac-2.1.0" ]]; then
+            echo "Error: Cellranger-atac version ($VERSIONV) doesn't match Docker Hub tag (${{ steps.tag-info.outputs.tag }})"
+            exit 1
+          else
+            echo "Cellranger-atac version matches Docker Hub tag."
+          fi