diff --git a/Dockerfile b/Dockerfile
index 739258119..3fc30eb3b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.15.0
+FROM alpine:3.15.3
 
 RUN apk add --no-cache ca-certificates
 
diff --git a/go.mod b/go.mod
index 1152a71af..498bd477f 100644
--- a/go.mod
+++ b/go.mod
@@ -15,10 +15,10 @@ require (
 	github.com/giantswarm/vaultcrt v0.2.0
 	github.com/giantswarm/vaultpki v0.2.0
 	github.com/giantswarm/vaultrole v0.2.0
-	github.com/hashicorp/vault/api v1.3.1
+	github.com/hashicorp/vault/api v1.5.0
 	github.com/prometheus/client_golang v1.12.1
 	github.com/spf13/viper v1.10.1
-	github.com/stretchr/testify v1.7.0
+	github.com/stretchr/testify v1.7.1
 	k8s.io/api v0.22.2
 	k8s.io/apimachinery v0.22.2
 	k8s.io/client-go v0.22.2