diff --git a/Dockerfile b/Dockerfile
index 1706a8ce..41dbe300 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 # build stage
 # =============================================================================
 
-FROM golang:1.18.5 AS builder
+FROM golang:1.18.9 AS builder
 
 WORKDIR /sdk