diff --git a/.test-defs/bastion-test.yaml b/.test-defs/bastion-test.yaml
index f1aede310..8aeff3d59 100644
--- a/.test-defs/bastion-test.yaml
+++ b/.test-defs/bastion-test.yaml
@@ -19,4 +19,4 @@ spec:
     --region="$REGION"
     --tenant-name="$TENANT_NAME"
     --user-name="$USER_NAME"
-  image: golang:1.19.2
+  image: golang:1.19.5
diff --git a/.test-defs/infrastructure-test.yaml b/.test-defs/infrastructure-test.yaml
index e8ae3ee3a..cdd78a152 100644
--- a/.test-defs/infrastructure-test.yaml
+++ b/.test-defs/infrastructure-test.yaml
@@ -19,4 +19,4 @@ spec:
     --region="$REGION"
     --tenant-name="$TENANT_NAME"
     --user-name="$USER_NAME"
-  image: golang:1.19.2
+  image: golang:1.19.5
diff --git a/.test-defs/provider-openstack.yaml b/.test-defs/provider-openstack.yaml
index 3001b5f2f..f82b9923a 100644
--- a/.test-defs/provider-openstack.yaml
+++ b/.test-defs/provider-openstack.yaml
@@ -16,4 +16,4 @@ spec:
     --loadbalancer-provider=$LOADBALANCER_PROVIDER
     --network-worker-cidr=$NETWORK_WORKER_CIDR
 
-  image: golang:1.19.2
+  image: golang:1.19.5
diff --git a/Dockerfile b/Dockerfile
index 19477fd82..abf41f9e2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ############# builder
-FROM golang:1.19.2 AS builder
+FROM golang:1.19.5 AS builder
 
 WORKDIR /go/src/github.com/gardener/gardener-extension-provider-openstack
 COPY . .