diff --git a/trunk/Dockerfile.test b/trunk/Dockerfile.test
index a30f53d468..4881096d0e 100644
--- a/trunk/Dockerfile.test
+++ b/trunk/Dockerfile.test
@@ -1,4 +1,4 @@
-FROM ossrs/srs:ubuntu20
+FROM ossrs/srs:ubuntu20-cache
 
 ARG MAKEARGS
 RUN echo "MAKEARGS: ${MAKEARGS}"