diff --git a/trunk/Dockerfile.test b/trunk/Dockerfile.test
index e6c2a75ff4..a62aaa6f3c 100644
--- a/trunk/Dockerfile.test
+++ b/trunk/Dockerfile.test
@@ -1,4 +1,4 @@
-FROM ossrs/srs:ubuntu20
+FROM ossrs/srs:ubuntu18-cache
 
 ARG MAKEARGS
 RUN echo "MAKEARGS: ${MAKEARGS}"
@@ -17,7 +17,7 @@ WORKDIR /srs/trunk
 
 # Note that we must enable the gcc7 or link failed.
 # Note that we must disable the build-cache, or it will failed, but donot know why.
-RUN ./configure --srt=on --gb28181=on --srt=on --apm=on --h265=on --utest=on --ffmpeg-opus=off --build-cache=off
+RUN ./configure --srt=on --gb28181=on --srt=on --apm=on --h265=on --utest=on --ffmpeg-opus=on --build-cache=off
 RUN make utest ${MAKEARGS}
 
 # Build benchmark tool.