diff --git a/.github/workflows/build-pgpool.yml b/.github/workflows/build-pgpool.yml
index 2d910ca..60f9b28 100644
--- a/.github/workflows/build-pgpool.yml
+++ b/.github/workflows/build-pgpool.yml
@@ -50,7 +50,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           file: Dockerfile.pgpool
-          platforms: linux/amd64, linux/arm64/v8, linux/ppc64le
+          platforms: linux/amd64, linux/arm64/v8
           push: ${{ github.event_name != 'pull_request' && github.event_name != 'merge_group' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b6a1dbe..dd2a059 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Build and push Docker image
         uses: docker/build-push-action@v6
         with:
-          platforms: linux/amd64, linux/arm64/v8, linux/ppc64le
+          platforms: linux/amd64, linux/arm64/v8
           push: ${{ github.event_name != 'pull_request' && github.event_name != 'merge_group' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
diff --git a/.github/workflows/release-pgpool.yml b/.github/workflows/release-pgpool.yml
index f541905..801cce4 100644
--- a/.github/workflows/release-pgpool.yml
+++ b/.github/workflows/release-pgpool.yml
@@ -4,10 +4,10 @@ on:
   schedule:
     - cron: '19 3 * * *'
   push:
-    branches: [ main, 15-3.3, 16-3.4 ]
+    branches: [ main, 15-3.3, 17-3.4 ]
 
 env:
-  LATEST: '16-3.4'
+  LATEST: '17-3.4'
   REGISTRY: docker.io
   IMAGE_NAME: ${{ github.repository }}
 
@@ -57,7 +57,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           file: Dockerfile.pgpool
-          platforms: linux/amd64, linux/arm64/v8, linux/ppc64le
+          platforms: linux/amd64, linux/arm64/v8
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 55c96b3..7422eb4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,10 +4,10 @@ on:
   schedule:
     - cron: '19 3 * * *'
   push:
-    branches: [ main, 15-3.3, 16-3.4 ]
+    branches: [ main, 15-3.3, 17-3.4 ]
 
 env:
-  LATEST: '16-3.4'
+  LATEST: '17-3.4'
   REGISTRY: docker.io
   IMAGE_NAME: ${{ github.repository }}
 
@@ -74,7 +74,7 @@ jobs:
         if: env.BRANCH == env.LATEST
         uses: docker/build-push-action@v6
         with:
-          platforms: linux/amd64, linux/arm64/v8, linux/ppc64le
+          platforms: linux/amd64, linux/arm64/v8
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta-latest.outputs.tags }}
           labels: ${{ steps.meta-latest.outputs.labels }}
diff --git a/Dockerfile b/Dockerfile
index 819bef7..028c7f5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM postgres:16-bullseye
+FROM postgres:17-bullseye
 
 ENV POSTGIS_MAJOR 3
-ENV POSTGIS_VERSION 3.4.2+dfsg-1.pgdg110+1
+ENV POSTGIS_VERSION 3.4.3+dfsg-2.pgdg110+1
 ENV POSTGRES_INITDB_ARGS "--data-checksums"
 
 RUN apt-get update \
diff --git a/Dockerfile.pgpool b/Dockerfile.pgpool
index 3295dfe..ec580b6 100644
--- a/Dockerfile.pgpool
+++ b/Dockerfile.pgpool
@@ -1,7 +1,7 @@
-FROM postgres:16-bullseye
+FROM postgres:17-bullseye
 
 ENV POSTGIS_MAJOR 3
-ENV POSTGIS_VERSION 3.4.2+dfsg-1.pgdg110+1
+ENV POSTGIS_VERSION 3.4.3+dfsg-2.pgdg110+1
 ENV POSTGRES_INITDB_ARGS "--data-checksums"
 
 RUN apt-get update \