diff --git a/build.env b/build.env
index 086af2ad3..e91cd8fa5 100644
--- a/build.env
+++ b/build.env
@@ -17,7 +17,7 @@ BASE_IMAGE=docker.io/ceph/ceph:v15
 CEPH_VERSION=nautilus
 
 # standard Golang options
-GOLANG_VERSION=1.15
+GOLANG_VERSION=1.15.5
 GO111MODULE=on
 
 # static checks and linters