diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 995dce8..40ec5c2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,9 +16,9 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.12"
+          python-version: "3.14"
       - name: Install markdownlint
-        run: npm install -g markdownlint-cli
+        run: npm install -g markdownlint-cli@0.48.0
       - name: Install Python dependencies
         run: pip install -r requirements.txt
       - name: Lint Markdown
diff --git a/requirements.txt b/requirements.txt
index df37d1f..a8f26b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 # KP:1 conformance suite Python dependencies
 # Install with: pip install -r requirements.txt
-pyyaml>=6.0
-jsonschema>=4.0
+pyyaml>=6.0.3
+jsonschema>=4.26