diff --git a/build.env b/build.env
index e6f2f71e7..e8ea428d3 100644
--- a/build.env
+++ b/build.env
@@ -19,7 +19,7 @@ BASE_IMAGE=quay.io/ceph/ceph:v18
 CEPH_VERSION=reef
 
 # standard Golang options
-GOLANG_VERSION=1.20.4
+GOLANG_VERSION=1.21.5
 GO111MODULE=on
 
 # commitlint version