diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
index 0bc057e3..1855ff31 100644
--- a/.github/workflows/Downgrade.yml
+++ b/.github/workflows/Downgrade.yml
@@ -11,32 +11,49 @@ on:
       - main
     paths-ignore:
       - 'docs/**'
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        version: ['1.6']
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+      - uses: cjdoris/julia-downgrade-compat-action@v1
+        # if: ${{ matrix.version == '1.6' }}
+        with:
+          skip: InteractiveUtils,LinearAlgebra,Random,Test
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+
 jobs:
   generate-matrix:
-    runs-on: ${{ github.event.inputs.os }}
+    runs-on: ubuntu-latest
     outputs:
       matrix: ${{ steps.genmat1.outputs.matrix || steps.genmat2.outputs.matrix }}
     steps:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@latest
         with:
-          version: ${{ github.event.inputs.julia-version }}
-          arch: ${{ github.event.inputs.arch }}
+          version: 1
       - run: julia -e 'using Pkg; pkg"add CompatHelperLocal"'
-      - run: julia -e 'using Pkg; pkg"add ${{ github.event.inputs.package }}${{ github.event.inputs.revision }}"'
-      - if: github.event.inputs.mode == 'two'
+      - run: julia -e 'using Pkg; pkg"add Copulas"'
+      - if: true #github.event.inputs.mode == 'two'
         id: genmat1
         run: |
           echo '::echo::on'
-          julia -e 'import CompatHelperLocal as CHL; import ${{ github.event.inputs.package }}; projfile = joinpath(pathof(${{ github.event.inputs.package }}) |> dirname |> dirname, "Project.toml"); println(CHL.compats_combinations_to_gha_string(CHL.get_compats_combinations(projfile, only_resolveable=true)))'
-      - if: github.event.inputs.mode == 'all'
+          julia -e 'import CompatHelperLocal as CHL; import Copulas; projfile = joinpath(pathof(Copulas) |> dirname |> dirname, "Project.toml"); println(CHL.compats_combinations_to_gha_string(CHL.get_compats_combinations(projfile, only_resolveable=true)))'
+      - if: false # github.event.inputs.mode == 'all'
         id: genmat2
         run: |
           echo '::echo::on'
-          julia -e 'import CompatHelperLocal as CHL; import ${{ github.event.inputs.package }}; projfile = joinpath(pathof(${{ github.event.inputs.package }}) |> dirname |> dirname, "Project.toml"); println(CHL.compats_combinations_to_gha_string(CHL.get_all_compats_combinations(projfile)))'
+          julia -e 'import CompatHelperLocal as CHL; import Copulas; projfile = joinpath(pathof(Copulas) |> dirname |> dirname, "Project.toml"); println(CHL.compats_combinations_to_gha_string(CHL.get_all_compats_combinations(projfile)))'
   test:
     needs: generate-matrix
-    runs-on: ${{ github.event.inputs.os }}
+    runs-on: ubuntu-latest
     strategy:
       matrix: ${{fromJSON(needs.generate-matrix.outputs.matrix)}}
       fail-fast: false
@@ -44,8 +61,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@latest
         with:
-          version: ${{ github.event.inputs.julia-version }}
-          arch: ${{ github.event.inputs.arch }}
+          version: 1
       - run: julia -e 'using Pkg; pkg"add CompatHelperLocal"'
-      - run: julia -e 'using Pkg; pkg"add ${{ github.event.inputs.package }}${{ github.event.inputs.revision }}"'
-      - run: julia -e 'import CompatHelperLocal as CHL; import ${{ github.event.inputs.package }}; CHL.test_compats_combinations(${{ github.event.inputs.package }}, [${{ matrix.compats }}])'
\ No newline at end of file
+      - run: julia -e 'using Pkg; pkg"add Copulas"'
+      - run: julia -e 'import CompatHelperLocal as CHL; import Copulas; CHL.test_compats_combinations(Copulas, [${{ matrix.compats }}])'
\ No newline at end of file