diff --git a/sign/action.yml b/sign/action.yml
index 85d2837..bc34655 100644
--- a/sign/action.yml
+++ b/sign/action.yml
@@ -32,8 +32,8 @@ runs:
       shell: bash
       run: |
         docker pull cgr.dev/chainguard/cosign:latest
-        docker run -d --name cosign cgr.dev/chainguard/cosign:latest
-        docker cp cosign:/usr/bin/cosign /usr/local/bin/cosign
+        CONTAINER_ID=$(docker run -d cgr.dev/chainguard/cosign:latest)
+        docker cp "${CONTAINER_ID}":/usr/bin/cosign /usr/local/bin/cosign
 
     - name: Sign container image
       shell: bash
diff --git a/verify/action.yml b/verify/action.yml
index 647fd78..69009aa 100644
--- a/verify/action.yml
+++ b/verify/action.yml
@@ -30,8 +30,8 @@ runs:
       shell: bash
       run: |
         docker pull cgr.dev/chainguard/cosign:latest
-        docker run -d --name cosign cgr.dev/chainguard/cosign:latest
-        docker cp cosign:/usr/bin/cosign /usr/local/bin/cosign
+        CONTAINER_ID=$(docker run -d cgr.dev/chainguard/cosign:latest)
+        docker cp "${CONTAINER_ID}":/usr/bin/cosign /usr/local/bin/cosign
 
     - name: Verify container
       shell: bash