diff --git a/images/cspo/Dockerfile b/images/cspo/Dockerfile
index 187ca778..3992aa13 100644
--- a/images/cspo/Dockerfile
+++ b/images/cspo/Dockerfile
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # Build the manager binary
-FROM --platform=${BUILDPLATFORM} docker.io/library/golang:1.21.5-bullseye as build
+FROM --platform=${BUILDPLATFORM} docker.io/library/golang:1.21.6-bullseye as build
 ARG TARGETOS TARGETARCH
 
 COPY . /src/cluster-stack-provider-openstack