diff --git a/.github/workflows/Downstream.yml b/.github/workflows/Downstream.yml
index df7e2922..65f757f8 100644
--- a/.github/workflows/Downstream.yml
+++ b/.github/workflows/Downstream.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        julia-version: [1.7]
+        julia-version: [1, 1.6]
         os: [ubuntu-latest]
         package:
           - {user: JuliaSymbolics, repo: Symbolics.jl, group: All}
@@ -23,14 +23,14 @@ jobs:
           - {user: sumiya11, repo: ParamPunPam.jl, group: All}
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: julia-actions/setup-julia@v1
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.julia-version }}
           arch: x64
       - uses: julia-actions/julia-buildpkg@latest
       - name: Clone Downstream
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           path: downstream
diff --git a/.github/workflows/Runtests.yml b/.github/workflows/Runtests.yml
index a8cc1175..7ae413f4 100644
--- a/.github/workflows/Runtests.yml
+++ b/.github/workflows/Runtests.yml
@@ -1,5 +1,5 @@
 name: Runtests
-on: [push, pull_request]
+on: [push, pull_request]  
 jobs:
   test:
     runs-on: ${{ matrix.os }}
@@ -13,6 +13,16 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.julia-version }}
+      - uses: actions/cache@v4
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
       - uses: julia-actions/julia-buildpkg@latest
       - uses: julia-actions/julia-runtest@latest
         with:
@@ -21,4 +31,4 @@ jobs:
       - uses: codecov/codecov-action@v3
         with:
           file: lcov.info
-  
\ No newline at end of file
+