diff --git a/dockerfiles/pub-mirror/Dockerfile b/dockerfiles/pub-mirror/Dockerfile
index 15f5ad8..d92e342 100644
--- a/dockerfiles/pub-mirror/Dockerfile
+++ b/dockerfiles/pub-mirror/Dockerfile
@@ -3,6 +3,6 @@ MAINTAINER Hui Yiqun <i@huiyiqun.me>
 
 ENV PUB_CACHE /pub-cache
 
-RUN pub global activate pub_mirror
+RUN pub global activate pub_mirror 1.0.6
 
 CMD /bin/bash