diff --git a/controller-gen/main.go b/controller-gen/main.go
index 63980d3f..73d92c17 100644
--- a/controller-gen/main.go
+++ b/controller-gen/main.go
@@ -34,7 +34,7 @@ func New(
 	controllerGenVersion string,
 	// +optional
 	// renovate image: datasource=docker depName=golang versioning=docker
-	// +default="golang:1.26.4-bookworm"
+	// +default="golang:1.26.5-bookworm"
 	goImage string,
 	// +optional
 	ctr *dagger.Container,
diff --git a/crd-ref-docs/main.go b/crd-ref-docs/main.go
index 7e753944..c5254410 100644
--- a/crd-ref-docs/main.go
+++ b/crd-ref-docs/main.go
@@ -37,7 +37,7 @@ func New(
 // Go image to use.
 // +optional
 // renovate image: datasource=docker depName=golang versioning=docker
-// +default="golang:1.26.4-alpine"
+// +default="golang:1.26.5-alpine"
 	Image string,
 // CrdRefDocs version to use.
 // +optional
diff --git a/go-licenses/main.go b/go-licenses/main.go
index c4a57863..32e30d68 100644
--- a/go-licenses/main.go
+++ b/go-licenses/main.go
@@ -34,7 +34,7 @@ func New(
 	goLicensesVersion string,
 // +optional
 // renovate image: datasource=docker depName=golang versioning=docker
-// +default="golang:1.26.4-alpine"
+// +default="golang:1.26.5-alpine"
 	goImage string,
 // +optional
 	ctr *dagger.Container,
diff --git a/protoc-gen-go-grpc/dagger/main.go b/protoc-gen-go-grpc/dagger/main.go
index aad11582..e7ce713f 100644
--- a/protoc-gen-go-grpc/dagger/main.go
+++ b/protoc-gen-go-grpc/dagger/main.go
@@ -22,7 +22,7 @@ func New(
 // Custom image to use to run protoc.
 // +optional
 // renovate image: datasource=docker depName=golang versioning=docker
-// +default="golang:1.26.4-bookworm"
+// +default="golang:1.26.5-bookworm"
 	goImage string,
 // +optional
 // renovate: datasource=github-tags depName=protocolbuffers/protobuf versioning="regex:^v?(?<major>\\d+)\\.(?<minor>\\d+)$"