diff --git a/.github/workflows/build-pdf.yml b/.github/workflows/build-pdf.yml
index d5ac7d630..6bd60cd4e 100644
--- a/.github/workflows/build-pdf.yml
+++ b/.github/workflows/build-pdf.yml
@@ -13,7 +13,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
       - name: Install packages
@@ -26,7 +26,7 @@ jobs:
         run: make -C doc build
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: v-intrinsic-spec.pdf
           path: doc/v-intrinsic-spec.pdf
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download artifact
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
         with:
           name: v-intrinsic-spec.pdf
           path: ./doc/
@@ -74,7 +74,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download artifact
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
         with:
           name: v-intrinsic-spec.pdf
           path: ./doc