diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 2af853e39d4..49c6a473ccd 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -6,8 +6,6 @@ on:
     branches:
       - main
   pull_request:
-    branches:
-      - main
     paths-ignore:
       - '**/*.html'
       - '**/*.md'
@@ -54,6 +52,8 @@ jobs:
           sudo apt-get install -y wget git gawk findutils
           xargs -a <(awk '! /^ *(#|$)/' ".github/workflows/apt.txt") -r -- \
               sudo apt-get install -y --no-install-recommends --no-install-suggests
+      - uses: rui314/setup-mold@6bebc01caac32fb5251ee64f60cea0322d0e6574 # v1
+        if: ${{ matrix.language == 'c-cpp' }}
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@d39d31e687223d841ef683f52467bd88e9b21c14 # v3.25.3
diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 65c750a8694..62dbe8c3014 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -47,6 +47,8 @@ jobs:
           xargs -a <(awk '! /^ *(#|$)/' ".github/workflows/apt.txt") -r -- \
               sudo apt-get install -y --no-install-recommends --no-install-suggests
 
+      - uses: rui314/setup-mold@6bebc01caac32fb5251ee64f60cea0322d0e6574 # v1
+
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/.github/workflows/python-code-quality.yml b/.github/workflows/python-code-quality.yml
index 659bb40d9ad..62f9c70a8f6 100644
--- a/.github/workflows/python-code-quality.yml
+++ b/.github/workflows/python-code-quality.yml
@@ -7,9 +7,6 @@ on:
       - main
       - releasebranch_*
   pull_request:
-    branches:
-      - main
-      - releasebranch_*
 
 jobs:
   python-checks:
@@ -120,6 +117,7 @@ jobs:
         run: |
           echo "MAKEFLAGS=-j$(nproc)" >> $GITHUB_ENV
 
+      - uses: rui314/setup-mold@6bebc01caac32fb5251ee64f60cea0322d0e6574 # v1
       - name: Build
         run: .github/workflows/build_${{ matrix.os }}.sh $HOME/install