diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 965f998a..4d1b7b04 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,58 +6,69 @@ on:
       - master
   pull_request:
 
+# needed to allow julia-actions/cache to delete old caches that it has created
+permissions:
+  actions: write
+  contents: read
+
 jobs:
   test:
-    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
-    runs-on: ${{ matrix.os }}
-    continue-on-error: ${{ matrix.version == 'nightly' }}
+    name: Julia ${{ matrix.runner.version }} - ${{ matrix.runner.os }} - ${{ matrix.runner.arch }} - ${{ github.event_name }}
+    runs-on: ${{ matrix.runner.os }}
     strategy:
+      fail-fast: false
       matrix:
-        version:
-          - '1.7'
-          - '1'
-          - 'nightly'
-        os:
-          - ubuntu-latest
-          - macOS-latest
-          - windows-latest
-        arch:
-          - x64
-          - x86
-        exclude:
-          - os: macOS-latest
+        runner:
+          # Default
+          - version: '1'
+            os: ubuntu-latest
+            arch: x64
+            num_threads: 1
+          # x86
+          - version: '1'
+            os: ubuntu-latest
             arch: x86
-        include:
+            num_threads: 1
+          # Multithreaded
+          - version: '1'
+            os: ubuntu-latest
+            arch: x64
+            num_threads: 2
+          # Windows
+          - version: '1'
+            os: windows-latest
+            arch: x64
+            num_threads: 1
+          # macOS
           - version: '1'
+            os: macos-latest
+            arch: aarch64
+            num_threads: 1
+          # Minimum supported Julia version
+          - version: 'min'
             os: ubuntu-latest
             arch: x64
-            coverage: true
+            num_threads: 1
+          # Pre-release Julia version
+          - version: 'pre'
+            os: ubuntu-latest
+            arch: x64
+            num_threads: 1
     steps:
-      - uses: actions/checkout@v2
-      - uses: julia-actions/setup-julia@v1
-        with:
-          version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
-      - uses: actions/cache@v1
-        env:
-          cache-name: cache-artifacts
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
         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 }}-
+          version: ${{ matrix.runner.version }}
+          arch: ${{ matrix.runner.arch }}
+      - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
-        if: matrix.coverage
-      - uses: codecov/codecov-action@v1
-        if: matrix.coverage
+      - uses: codecov/codecov-action@v5
         with:
-          file: lcov.info
-      - uses: coverallsapp/github-action@master
-        if: matrix.coverage
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
+      - uses: coverallsapp/github-action@v2
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           path-to-lcov: lcov.info
diff --git a/Project.toml b/Project.toml
index 3dae8cfe..7641cce5 100644
--- a/Project.toml
+++ b/Project.toml
@@ -22,12 +22,12 @@ AdvancedPSLibtaskExt = "Libtask"
 AbstractMCMC = "2, 3, 4, 5"
 Distributions = "0.23, 0.24, 0.25"
 Libtask = "0.8"
-Random = "1.6"
+Random = "<0.0.1, 1"
 Random123 = "1.3"
 Requires = "1.0"
 StatsFuns = "0.9, 1"
 SSMProblems = "0.1"
-julia = "1.6"
+julia = "1.7"
 
 [extras]
 Libtask = "6f1fad26-d15e-5dc8-ae53-837a1d7b8c9f"