diff --git a/.github/workflows/asan.yaml b/.github/workflows/asan.yaml
index d261ba3a09c2..d49c00919ed4 100644
--- a/.github/workflows/asan.yaml
+++ b/.github/workflows/asan.yaml
@@ -25,6 +25,17 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
+      # Install git before actions/checkout as otherwise it will download the code
+      # with the GitHub REST API and therefore any subsequent git commands will fail.
+      - name: Install clang 18
+      env:
+        DEBIAN_FRONTEND: noninteractive
+      run: |
+        apt update
+        apt install -y clang-18 libstdc++-14-dev build-essential libssl-dev \
+          zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev curl git \
+          libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev \
+          libffi-dev liblzma-dev
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           path: jax
@@ -33,15 +44,6 @@ jobs:
           repository: python/cpython
           path: cpython
           ref: v3.13.0
-      - name: Install clang 18
-        env:
-          DEBIAN_FRONTEND: noninteractive
-        run: |
-          apt update
-          apt install -y clang-18 libstdc++-14-dev build-essential libssl-dev \
-            zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev curl git \
-            libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev \
-            libffi-dev liblzma-dev
       - name: Build CPython with ASAN enabled
         env:
           ASAN_OPTIONS: detect_leaks=0