diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3587a11..a2def09 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,6 +17,11 @@ jobs:
     name: Build Wasm
     runs-on: ubuntu-24.04
     steps:
+      - uses: actions/checkout@v4
+        with:
+          repository: OSGeo/PROJ
+          ref: 9.5.0
+          sparse-checkout: src/
       - uses: actions/checkout@v4
       - run: make sr9.wasm
       - uses: actions/upload-artifact@v4
@@ -25,17 +30,10 @@ jobs:
           path: sr9.wasm
   build:
     name: Build
-    needs: build-wasm
     runs-on: ubuntu-24.04
+    needs: build-wasm
     steps:
       - uses: actions/checkout@v4
-        with:
-          repository: OSGeo/PROJ
-          ref: v5.9.0
-          sparse-checkout: src/
-      - uses: actions/checkout@v4
-        with:
-          sparse-checkout: src/sr9.c
       - uses: actions/download-artifact@v4
         with:
           name: wasm