diff --git a/.github/workflows/backtest.yml b/.github/workflows/backtest.yml
index 4439349..fa849fc 100644
--- a/.github/workflows/backtest.yml
+++ b/.github/workflows/backtest.yml
@@ -58,7 +58,7 @@ jobs:
 
     steps:
 
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v4.1.7
         with:
           name: EA
 
diff --git a/.github/workflows/optimize-strats.yml b/.github/workflows/optimize-strats.yml
index 8251f13..ec6ce59 100644
--- a/.github/workflows/optimize-strats.yml
+++ b/.github/workflows/optimize-strats.yml
@@ -73,7 +73,7 @@ jobs:
       matrix:
         setfile: ${{ fromJson(needs.Process.outputs.sets-list) }}
     steps:
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v4.1.7
         with:
           path: .
       - name: Display SET file
@@ -121,7 +121,7 @@ jobs:
           persist-credentials: false
           # Otherwise, you will failed to push refs to dest repo.
           fetch-depth: 0
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v4.1.7
         with:
           name: results
           path: .results
diff --git a/.github/workflows/optimize-tf.yml b/.github/workflows/optimize-tf.yml
index a4a9abe..dc0abb6 100644
--- a/.github/workflows/optimize-tf.yml
+++ b/.github/workflows/optimize-tf.yml
@@ -73,7 +73,7 @@ jobs:
       matrix:
         setfile: ${{ fromJson(needs.Process.outputs.sets-list) }}
     steps:
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v4.1.7
         with:
           path: .
       - name: Display SET file
@@ -121,7 +121,7 @@ jobs:
           persist-credentials: false
           # Otherwise, you will failed to push refs to dest repo.
           fetch-depth: 0
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v4.1.7
         with:
           name: results
           path: .results
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0b483cd..0d50fa9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -72,7 +72,7 @@ jobs:
 
     steps:
 
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v4.1.7
         with:
           name: EA