diff --git a/signaturepdf/docker-compose.yml b/signaturepdf/docker-compose.yml
index d8a468a..5e078b2 100644
--- a/signaturepdf/docker-compose.yml
+++ b/signaturepdf/docker-compose.yml
@@ -9,7 +9,7 @@ volumes:
 services:
   signaturepdf:
     container_name: ${SIGNATUREPDF_CONTAINER_NAME:-signaturepdf}
-    image: ${SIGNATUREPDF_IMAGE}
+    image: ${SIGNATUREPDF_IMAGE:-simonc/signaturepdf:latest}
     volumes:
     - signaturepdf:/data
     environment: