diff --git a/.github/workflows/vaccine.yml b/.github/workflows/vaccine.yml
index 69b6fe2..b6cf39d 100644
--- a/.github/workflows/vaccine.yml
+++ b/.github/workflows/vaccine.yml
@@ -60,14 +60,14 @@ jobs:
       - run: bundle install 
       # Prepare mock server 'catadog', https://github.com/DataDog/catadog
       - run: mkdir $GITHUB_WORKSPACE/records
-      # - run: |
-      #     docker run -d \
-      #       --name catadog \
-      #       -v $GITHUB_WORKSPACE/records:/records \
-      #       -p 8128:8128 \
-      #       ghcr.io/datadog/catadog:latest \
-      #       "-h 0.0.0.0 --mock :Sink --no-forward --record /records"
-      # - run: curl -I http://localhost:8128/catadog
+      - run: |
+          docker run -d \
+            --name catadog \
+            -v $GITHUB_WORKSPACE/records:/records \
+            -p 8128:8128 \
+            ghcr.io/datadog/catadog:latest \
+            "-h 0.0.0.0 --mock :Sink --no-forward --record /records"
+      - run: curl -I --retry 12 -f --retry-all-errors --retry-delay 5 -s http://localhost:8128/catadog
 
       # Prepare vaccine
       - name: Prepare vaccine volume