diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index f05156dda..cf4f4085f 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -19,23 +19,23 @@ jobs:
 
     steps:
       - name: 📥 Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@9f698171ed81b15d1823a05fc7211befd50c8ae0 # v6.0.3
         with:
           fetch-depth: 0
 
       - name: 🐍 Setup Python 3.11
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.11"
           cache: "pip"
 
       - name: 📦 Setup Node.js 20
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "20"
 
       - name: 🔧 Cache pre-commit environments
-        uses: actions/cache@v4
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
           path: |
             ~/.cache/pre-commit
@@ -51,6 +51,6 @@ jobs:
           pip install pre-commit
 
       - name: 🔍 Run documentation quality checks
-        uses: pre-commit/action@v3.0.1
+        uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
         with:
           extra_args: --all-files --show-diff-on-failure
diff --git a/.github/workflows/prowlarr-ci.yml b/.github/workflows/prowlarr-ci.yml
index 844367bd9..b76d98455 100644
--- a/.github/workflows/prowlarr-ci.yml
+++ b/.github/workflows/prowlarr-ci.yml
@@ -18,16 +18,16 @@ jobs:
     env:
       API_KEY: fakeapikey
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@9f698171ed81b15d1823a05fc7211befd50c8ae0 # v6.0.3
 
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.10"
           cache: "pip"
 
       - name: Setup Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "18"
 
@@ -35,7 +35,7 @@ jobs:
         run: pip install -r requirements.txt
 
       - name: Cache pre-commit hooks
-        uses: actions/cache@v4
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
           path: ~/.cache/pre-commit
           key: pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1702cda11..781b2526e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -44,8 +44,8 @@ repos:
         stages: [pre-commit, pre-merge-commit, pre-push, manual]
 
   # YAML formatting
-  - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: v4.0.0-alpha.8
+  - repo: https://github.com/rbubley/mirrors-prettier
+    rev: v3.8.4
     hooks:
       - id: prettier
         files: \.(yaml|yml)$