diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 00000000..74f6302c
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "docker"
+    directory: "/docker"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: "weekly"
diff --git a/.github/workflows/build-nightly-container.yml b/.github/workflows/build-nightly-container.yml
index 5ff3322f..4149bd0b 100644
--- a/.github/workflows/build-nightly-container.yml
+++ b/.github/workflows/build-nightly-container.yml
@@ -50,7 +50,7 @@ jobs:
             quay.expires-after=12w
 
       - name: Build and push Docker AMD64 image for Push Event
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: docker/Dockerfile
@@ -75,7 +75,7 @@ jobs:
             quay.expires-after=12w
 
       - name: Build and push Docker ARM64 image for Push Event
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: docker/Dockerfile.arm64
diff --git a/.github/workflows/build-stable-container.yml b/.github/workflows/build-stable-container.yml
index 25571ed6..1a23e68c 100644
--- a/.github/workflows/build-stable-container.yml
+++ b/.github/workflows/build-stable-container.yml
@@ -43,7 +43,7 @@ jobs:
             quay.expires-after=12w
 
       - name: Build and push Docker AMD64 image for Push Event
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: docker/Dockerfile
@@ -69,7 +69,7 @@ jobs:
             quay.expires-after=12w
 
       - name: Build and push Docker ARM64 image for Push Event
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: docker/Dockerfile.arm64
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5f859613..9d6a930a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,10 +38,11 @@ jobs:
       matrix:
         stable: [true]
         crystal:
-          - 1.12.1
-          - 1.13.2
-          - 1.14.0
-          - 1.15.0
+          - 1.12.2
+          - 1.13.3
+          - 1.14.1
+          - 1.15.1
+          - 1.16.3
         include:
           - crystal: nightly
             stable: false
@@ -57,12 +58,12 @@ jobs:
         shell: bash
 
       - name: Install Crystal
-        uses: crystal-lang/install-crystal@v1.8.0
+        uses: crystal-lang/install-crystal@v1.8.2
         with:
           crystal: ${{ matrix.crystal }}
 
       - name: Cache Shards
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ./lib
@@ -113,7 +114,7 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build Docker ARM64 image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: docker/Dockerfile.arm64
@@ -136,12 +137,12 @@ jobs:
 
       - name: Install Crystal
         id: lint_step_install_crystal
-        uses: crystal-lang/install-crystal@v1.8.0
+        uses: crystal-lang/install-crystal@v1.8.2
         with:
           crystal: latest
 
       - name: Cache Shards
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ./lib
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 498a2c1b..65340d14 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -10,7 +10,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/stale@v8
+    - uses: actions/stale@v9
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         days-before-stale: 730
diff --git a/docker/Dockerfile b/docker/Dockerfile
index a07bef28..4cfc3c72 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM crystallang/crystal:1.12.2-alpine AS builder
+FROM crystallang/crystal:1.16.3-alpine AS builder
 
 RUN apk add --no-cache sqlite-static yaml-static
 
@@ -32,7 +32,7 @@ RUN --mount=type=cache,target=/root/.cache/crystal if [[ "${release}" == 1 ]] ;
         --link-flags "-lxml2 -llzma"; \
     fi
 
-FROM alpine:3.20
+FROM alpine:3.21
 RUN apk add --no-cache rsvg-convert ttf-opensans tini tzdata
 WORKDIR /invidious
 RUN addgroup -g 1000 -S invidious && \
diff --git a/docker/Dockerfile.arm64 b/docker/Dockerfile.arm64
index 7fcb176e..758e7950 100644
--- a/docker/Dockerfile.arm64
+++ b/docker/Dockerfile.arm64
@@ -1,5 +1,5 @@
-FROM alpine:3.20 AS builder
-RUN apk add --no-cache 'crystal=1.12.2-r0' shards sqlite-static yaml-static yaml-dev libxml2-static \
+FROM alpine:3.21 AS builder
+RUN apk add --no-cache 'crystal=1.14.0-r0' shards sqlite-static yaml-static yaml-dev libxml2-static \
        zlib-static openssl-libs-static openssl-dev musl-dev xz-static
 
 ARG release
@@ -33,7 +33,7 @@ RUN --mount=type=cache,target=/root/.cache/crystal if [[ "${release}" == 1 ]] ;
         --link-flags "-lxml2 -llzma"; \
     fi
 
-FROM alpine:3.20
+FROM alpine:3.21
 RUN apk add --no-cache rsvg-convert ttf-opensans tini tzdata
 WORKDIR /invidious
 RUN addgroup -g 1000 -S invidious && \