diff --git a/docker/pulsar/Dockerfile b/docker/pulsar/Dockerfile
index 83d1647f8f1376..0df2ce565c05f2 100644
--- a/docker/pulsar/Dockerfile
+++ b/docker/pulsar/Dockerfile
@@ -113,4 +113,4 @@ ENV PATH=$PATH:$JAVA_HOME/bin:/pulsar/bin
 # The UID must be non-zero. Otherwise, it is arbitrary. No logic should rely on its specific value.
 ARG DEFAULT_USERNAME=pulsar
 RUN adduser ${DEFAULT_USERNAME} -u 10000 -G root -D
-USER ${DEFAULT_USERNAME}
+USER 10000