diff --git a/Dockerfile b/Dockerfile
index ea27014..c5cd81e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM alpine:3.20.9 as builder
+FROM alpine:3.23.3 as builder
 
 RUN apk add --no-cache --virtual .tools \
   bzip2 curl nghttp2-libs git automake libtool autoconf make sed file perl openrc openssl
@@ -127,7 +127,7 @@ RUN mkdir -p /opt/ats/var/run/redis/ \
 # set up ingress log location
 RUN mkdir -p /opt/ats/var/log/ingress/
 
-FROM alpine:3.20.9
+FROM alpine:3.23.3
 
 # essential library  
 RUN apk add --no-cache -U \
diff --git a/README.md b/README.md
index 8538e8f..8592bb9 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ Card](https://goreportcard.com/badge/github.com/apache/trafficserver-ingress-con
 - [Development](https://github.com/apache/trafficserver-ingress-controller/blob/master/docs/DEVELOPMENT.md)
 
 ## Dependencies
-- Alpine Linux 3.20.9
+- Alpine Linux 3.23.3
 - Apache Traffic Server 9.2.12
 - OpenResty LuaJIT2 v2.1_p20240815
 - Go (Version can be found in `GO_VERSION` file found at the base of this repository)