diff --git a/build/Dockerfile b/build/Dockerfile
index 47a82ad..c7039a1 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.18 as endlessh-builder
+FROM alpine:3.20 as endlessh-builder
 
 RUN apk add --no-cache build-base git
 WORKDIR /src
@@ -7,7 +7,7 @@ RUN git clone -b ${ENDLESSH_VERSION} https://github.com/skeeto/endlessh .
 RUN make
 
 
-FROM alpine:3.18
+FROM alpine:3.20
 
 RUN apk add --no-cache --progress --quiet \
   bash \
diff --git a/build/fail2ban.Dockerfile b/build/fail2ban.Dockerfile
index 3146f57..fbcab7f 100644
--- a/build/fail2ban.Dockerfile
+++ b/build/fail2ban.Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.18
+FROM alpine:3.20
 
 RUN apk add --no-cache --progress --quiet \
   bash \