diff --git a/.github/workflows/upload.yml b/.github/workflows/upload.yml
index 0f72300335..39400cc2c3 100644
--- a/.github/workflows/upload.yml
+++ b/.github/workflows/upload.yml
@@ -56,9 +56,16 @@ jobs:
           curl -X POST -H "Content-Type: application/json" \
             -d '{"name": "sitespeed"}' \
             http://127.0.0.1:8081/storage/v1/b?project=sitespeed
-    - name: Setup minio/S3 container
+    - name: Setup S3 container
+      # MinIO archived the open source project in 2026 and removed the
+      # minio/minio and minio/mc images from Docker Hub, so the old
+      # docker-compose setup can't pull anymore. s3mock is a small
+      # Apache-2 S3 mock that accepts any credentials and region, which
+      # is all this upload smoke test needs.
       run: |
-            docker compose -f test/docker/docker-compose.minio.yml up -d
+          docker run -d -p 9090:9090 \
+            -e COM_ADOBE_TESTING_S3MOCK_STORE_INITIAL_BUCKETS=sitespeedio \
+            adobe/s3mock:5.2.2
     - name: Install local HTTP server
       run: npm install serve -g
     - name: Start local HTTP server
@@ -72,4 +79,4 @@ jobs:
     - name: Run Chrome test sending data to GCS
       run: STORAGE_EMULATOR_HOST="http://localhost:8081" node bin/sitespeed.js http://127.0.0.1:3001/simple/ --xvfb -n 1 --gcs.bucketname sitespeed --gcs.projectId sitespeed
     - name: Run Chrome test sending data to S3
-      run: node bin/sitespeed.js http://127.0.0.1:3001/simple/ --xvfb -n 1 --s3.endpoint http://127.0.0.1:9000 --s3.bucketname sitespeedio --s3.key user --s3.secret password --s3.region motown
\ No newline at end of file
+      run: node bin/sitespeed.js http://127.0.0.1:3001/simple/ --xvfb -n 1 --s3.endpoint http://127.0.0.1:9090 --s3.bucketname sitespeedio --s3.key user --s3.secret password --s3.region motown
\ No newline at end of file
diff --git a/.github/workflows/windowsFull.yml b/.github/workflows/windowsFull.yml
index 7508c62f84..c306017531 100644
--- a/.github/workflows/windowsFull.yml
+++ b/.github/workflows/windowsFull.yml
@@ -36,9 +36,13 @@ jobs:
       env:
         GECKODRIVER_SKIP_DOWNLOAD: true
     - name: Install ffmpeg
-      uses: AnimMouse/setup-ffmpeg@ae28d57dabbb148eff63170b6bf7f2b60062cbae # v1.2.3
+      # The action downloads the Windows build from BtbN/FFmpeg-Builds'
+      # rolling "latest" release, which only keeps the two newest release
+      # branches. When a branch drops out of it the download 404s and this
+      # job fails, so expect to bump this version every ~year.
+      uses: AnimMouse/setup-ffmpeg@178e0b4a408f06ce40d896c3cd79f50fa6f8b0c3 # v1.2.5
       with:
-        version: '7.1'
+        version: '8.1'
     - name: Set up Python
       uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
       with:
diff --git a/test/docker/docker-compose.minio.yml b/test/docker/docker-compose.minio.yml
deleted file mode 100644
index 02b64b767f..0000000000
--- a/test/docker/docker-compose.minio.yml
+++ /dev/null
@@ -1,32 +0,0 @@
-services:
-  minio:
-    image: minio/minio:RELEASE.2024-05-10T01-41-38Z
-    volumes:
-      - minio-data:/data
-    ports:
-      - "9000:9000"
-    environment:
-      - MINIO_ROOT_USER=user
-      - MINIO_ROOT_PASSWORD=password
-    command: server /data --console-address ":9001"
-    networks:
-      - skynet
-  mc:
-    image: minio/mc:RELEASE.2024-10-08T09-37-26Z
-    depends_on:
-      - minio
-    networks:
-      - skynet
-    entrypoint: >
-      /bin/sh -c "
-      /usr/bin/mc alias set sitespeedio http://minio:9000 user password &&
-      (/usr/bin/mc mb --region=motown sitespeedio/sitespeedio || echo 'Bucket already exists') &&
-      /usr/bin/mc ilm rule add --expire-days 30 sitespeedio/sitespeedio &&
-      /usr/bin/mc anonymous set public sitespeedio/sitespeedio &&
-      /usr/bin/mc admin config set sitespeedio compression extensions=\".html,.css,.js\" &&
-      echo 'MinIO and lifecycle policy setup complete.'"
-volumes:
-  minio-data:
-networks:
-  skynet:
-    name: skynet
\ No newline at end of file