diff --git a/Dockerfile b/Dockerfile
index 85d904c..2b83822 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM --platform=$BUILDPLATFORM golang:1.21.4 as builder
+FROM --platform=$BUILDPLATFORM golang:1.21.5 as builder
 ARG TARGETOS
 ARG TARGETARCH
 
diff --git a/go.mod b/go.mod
index 14351a3..ca31399 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/sap/project-operator
 
-go 1.21.4
+go 1.21.5
 
 require (
 	github.com/onsi/ginkgo/v2 v2.13.2