diff --git a/Dockerfile b/Dockerfile
index 49f0f69..84bed53 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ### build go executable
-FROM --platform=$BUILDPLATFORM golang:1.21.4 as build
+FROM --platform=$BUILDPLATFORM golang:1.21.5 as build
 ARG TARGETOS TARGETARCH
 
 WORKDIR /workspace
diff --git a/go.mod b/go.mod
index 6c5f259..cf4228c 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/sap/registry-credential-injector
 
-go 1.21.4
+go 1.21.5
 
 require (
 	github.com/go-logr/logr v1.3.0