diff --git a/Dockerfile b/Dockerfile
index 16374d1..526e715 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # This dockerfile is used to run unit tests.
 
-FROM golang:1.18.6
+FROM golang:1.21rc2
 
 # install redis
 RUN git clone -b 5.0 --depth 1 https://github.com/antirez/redis.git