diff --git a/cmd/tink-agent/Dockerfile b/cmd/tink-agent/Dockerfile
index f8db129f5..def174da5 100644
--- a/cmd/tink-agent/Dockerfile
+++ b/cmd/tink-agent/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.15
+FROM alpine:3.20.3
 
 ARG TARGETOS
 ARG TARGETARCH
diff --git a/cmd/tink-controller-v1alpha2/Dockerfile b/cmd/tink-controller-v1alpha2/Dockerfile
index 6a4b4cf6b..ad4d4a32a 100644
--- a/cmd/tink-controller-v1alpha2/Dockerfile
+++ b/cmd/tink-controller-v1alpha2/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.15
+FROM alpine:3.20.3
 
 ARG TARGETOS
 ARG TARGETARCH
diff --git a/cmd/tink-controller/Dockerfile b/cmd/tink-controller/Dockerfile
index 4e9cd9ad6..97436cbb6 100644
--- a/cmd/tink-controller/Dockerfile
+++ b/cmd/tink-controller/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.15
+FROM alpine:3.20.3
 
 ARG TARGETOS
 ARG TARGETARCH
diff --git a/cmd/tink-server/Dockerfile b/cmd/tink-server/Dockerfile
index a3ecba517..2d2bb2370 100644
--- a/cmd/tink-server/Dockerfile
+++ b/cmd/tink-server/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.15
+FROM alpine:3.20.3
 
 ARG TARGETOS
 ARG TARGETARCH
diff --git a/cmd/tink-worker/Dockerfile b/cmd/tink-worker/Dockerfile
index dfc5c99d4..cd90e0525 100644
--- a/cmd/tink-worker/Dockerfile
+++ b/cmd/tink-worker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.15
+FROM alpine:3.20.3
 
 ARG TARGETOS
 ARG TARGETARCH
diff --git a/cmd/virtual-worker/Dockerfile b/cmd/virtual-worker/Dockerfile
index 36d0085ef..d9e102f2f 100644
--- a/cmd/virtual-worker/Dockerfile
+++ b/cmd/virtual-worker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.15
+FROM alpine:3.20.3
 
 ARG TARGETOS
 ARG TARGETARCH