diff --git a/flink-sql/docker/sql-client/Dockerfile b/flink-sql/docker/sql-client/Dockerfile
index c1d917e..4f110ab 100644
--- a/flink-sql/docker/sql-client/Dockerfile
+++ b/flink-sql/docker/sql-client/Dockerfile
@@ -1,4 +1,4 @@
-FROM flink:1.20.1-java17
+FROM flink:2.1.1-java17
 
 # Install necessary utilities
 RUN apt-get update && \