diff --git a/Dockerfile b/Dockerfile
index cd1c7b7..8fc10ae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,7 +29,7 @@ RUN curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.d
 # Install Docker compose
 RUN mkdir -p /usr/local/lib/docker/cli-plugins \
     && curl -fLo /usr/local/lib/docker/cli-plugins/docker-compose \
-        "https://github.com/docker/compose/releases/download/$DOCKER_CONFIG_VERSION/docker-compose-linux-x86_64" \
+        "https://github.com/docker/compose/releases/download/${DOCKER_CONFIG_VERSION}/docker-compose-linux-x86_64" \
     && chmod +x /usr/local/lib/docker/cli-plugins/docker-compose
 
 # Set up tool cache