diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 777dc98..833fafc 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -4,24 +4,19 @@ on:
   - pull_request
 jobs:
   test:
-    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }}
-    runs-on: ${{ matrix.os }}
+    name: Julia ${{ matrix.version }}
+    runs-on: [self-hosted,titan]
     strategy:
       fail-fast: false
       matrix:
         version:
-          - '1.5'
-        os:
-          - ubuntu-latest
-          - macOS-latest
-        arch:
-          - x64
+          - '1.9'
+          - '1.10'
     steps:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
       - uses: julia-actions/julia-buildpkg@latest
       - uses: julia-actions/julia-runtest@latest
         env: