diff --git a/.github/workflows/build-icu.yml b/.github/workflows/build-icu.yml
index 470bb0afd38..9289879d438 100644
--- a/.github/workflows/build-icu.yml
+++ b/.github/workflows/build-icu.yml
@@ -77,13 +77,13 @@ jobs:
     steps:
       - name: Download CLDR Production Artifact
         id: downloadprod
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: cldr-prod
           path: .
       - name: Download CLDR tools
         id: downloadtools
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: cldr-code
           path: cldr-code
@@ -176,7 +176,7 @@ jobs:
           ref: ${{ github.event.inputs.icu-ref }}
           lfs: false
       - name: Download icu-data.zip
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: icu-data
           path: .
@@ -222,7 +222,7 @@ jobs:
       - name: Checkout lfs objects
         run: git lfs pull
       - name: Download icu-data.zip
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: icu-data
           path: .
diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 18690f15db1..0754ca3f4d3 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -277,7 +277,7 @@ jobs:
         lfs: false
     - run: mkdir -p tools/cldr-apps/target
     - name: Download cldr-apps.zip
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: cldr-apps-server
         path: tools/cldr-apps/target/cldr-apps.zip
@@ -335,7 +335,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Download cldr-apps.zip
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: cldr-apps-server
     - name: Deploy to cldr-smoke
diff --git a/.github/workflows/production.yml b/.github/workflows/production.yml
index df089f2da70..d3643d1c9c8 100644
--- a/.github/workflows/production.yml
+++ b/.github/workflows/production.yml
@@ -85,7 +85,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Download cldr-apps.zip
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: cldr-apps-server
     - name: Deploy to st
diff --git a/.github/workflows/staging.yml b/.github/workflows/staging.yml
index bd9002a54ea..87bc65710a7 100644
--- a/.github/workflows/staging.yml
+++ b/.github/workflows/staging.yml
@@ -79,7 +79,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Download cldr-apps.zip
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: cldr-apps-server
     - name: Deploy to st