diff --git a/images/pulsar-functions-base-runner/Dockerfile b/images/pulsar-functions-base-runner/Dockerfile
index 622d3be2..b9f85a7d 100644
--- a/images/pulsar-functions-base-runner/Dockerfile
+++ b/images/pulsar-functions-base-runner/Dockerfile
@@ -1,7 +1,7 @@
 ARG PULSAR_IMAGE
 ARG PULSAR_IMAGE_TAG
 FROM ${PULSAR_IMAGE}:${PULSAR_IMAGE_TAG} as pulsar
-FROM alpine:3.20 as functions-runner
+FROM alpine:3.20.3 as functions-runner
 
 ENV GID=10001
 ENV UID=10000
diff --git a/images/pulsar-functions-base-runner/pulsarctl.Dockerfile b/images/pulsar-functions-base-runner/pulsarctl.Dockerfile
index 564a10cf..5f95ed07 100644
--- a/images/pulsar-functions-base-runner/pulsarctl.Dockerfile
+++ b/images/pulsar-functions-base-runner/pulsarctl.Dockerfile
@@ -1,7 +1,7 @@
 ARG PULSAR_IMAGE
 ARG PULSAR_IMAGE_TAG
 FROM ${PULSAR_IMAGE}:${PULSAR_IMAGE_TAG} as pulsar
-FROM alpine:3.20 as functions-runner
+FROM alpine:3.20.3 as functions-runner
 
 ENV GID=10001
 ENV UID=10000
diff --git a/operator.Dockerfile b/operator.Dockerfile
index 7624968d..a242726d 100644
--- a/operator.Dockerfile
+++ b/operator.Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20
+FROM alpine:3.20.3
 
 ENV GID=10001
 ENV UID=10000