diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 23870d0..72191b0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -78,7 +78,7 @@ jobs:
       matrix:
         operating_system:
           - flavor: "alpine"
-            version: "3.19"
+            version: "3.20"
           - flavor: "bookworm"
         pg_target:
           - "12"
diff --git a/Dockerfile.alpine b/Dockerfile.alpine
index db97ec7..dab0933 100644
--- a/Dockerfile.alpine
+++ b/Dockerfile.alpine
@@ -1,7 +1,7 @@
 ARG PGTARGET=16
 
 ### Things we need in all build containers
-FROM alpine:3.19 as base-build
+FROM alpine:3.20 as base-build
 
 # The versions of PostgreSQL to use
 ENV PG95=9.5.25
@@ -135,7 +135,7 @@ RUN cd postgresql-16.* && \
   rm -rf /usr/local-pg16/include
 
 # Use the PostgreSQL Alpine image as our output image base
-FROM postgres:${PGTARGET}-alpine3.19
+FROM postgres:${PGTARGET}-alpine3.20
 
 # We need to define this here, to make the above PGTARGET available after the FROM
 ARG PGTARGET
diff --git a/Makefile b/Makefile
index 7ba66af..5a169b9 100644
--- a/Makefile
+++ b/Makefile
@@ -20,8 +20,8 @@ dev: 16dev
 	docker build -t pgautoupgrade/pgautoupgrade:16-dev -t pgautoupgrade/pgautoupgrade:dev .
 
 prod:
-	docker build --build-arg PGTARGET=15 -t pgautoupgrade/pgautoupgrade:15-alpine3.19 -t pgautoupgrade/pgautoupgrade:15-alpine . && \
-	docker build -t pgautoupgrade/pgautoupgrade:16-alpine3.19 -t pgautoupgrade/pgautoupgrade:16-alpine -t pgautoupgrade/pgautoupgrade:latest .
+	docker build --build-arg PGTARGET=15 -t pgautoupgrade/pgautoupgrade:15-alpine3.20 -t pgautoupgrade/pgautoupgrade:15-alpine . && \
+	docker build -t pgautoupgrade/pgautoupgrade:16-alpine3.20 -t pgautoupgrade/pgautoupgrade:16-alpine -t pgautoupgrade/pgautoupgrade:latest .
 
 attach:
 	docker exec -it pgauto /bin/bash
@@ -40,7 +40,7 @@ clean:
 	docker image rm --force pgautoupgrade/pgautoupgrade:dev pgautoupgrade/pgautoupgrade:12-dev pgautoupgrade/pgautoupgrade:13-dev \
 		pgautoupgrade/pgautoupgrade:14-dev pgautoupgrade/pgautoupgrade:15-dev pgautoupgrade/pgautoupgrade:16-dev \
 		pgautoupgrade/pgautoupgrade:15-alpine pgautoupgrade/pgautoupgrade:16-alpine \
-		pgautoupgrade/pgautoupgrade:15-alpine3.19 pgautoupgrade/pgautoupgrade:16-alpine3.19 pgautoupgrade/pgautoupgrade:latest && \
+		pgautoupgrade/pgautoupgrade:15-alpine3.20 pgautoupgrade/pgautoupgrade:16-alpine3.20 pgautoupgrade/pgautoupgrade:latest && \
 	docker image prune -f && \
 	docker volume prune -f
 
@@ -77,8 +77,8 @@ pushdev:
 	docker push pgautoupgrade/pgautoupgrade:dev
 
 pushprod:
-	docker push pgautoupgrade/pgautoupgrade:15-alpine3.19 && \
+	docker push pgautoupgrade/pgautoupgrade:15-alpine3.20 && \
 	docker push pgautoupgrade/pgautoupgrade:15-alpine && \
-	docker push pgautoupgrade/pgautoupgrade:16-alpine3.19 && \
+	docker push pgautoupgrade/pgautoupgrade:16-alpine3.20 && \
 	docker push pgautoupgrade/pgautoupgrade:16-alpine && \
 	docker push pgautoupgrade/pgautoupgrade:latest
\ No newline at end of file