diff --git a/.github/workflows/downstream.yml b/.github/workflows/downstream.yml
index 4f6df6f..5eaed9c 100644
--- a/.github/workflows/downstream.yml
+++ b/.github/workflows/downstream.yml
@@ -19,14 +19,14 @@ jobs:
           - {user: BioJulia, repo: PopGen.jl, group: downstream}
           - {user: pdimens, repo: PopGenSims.jl, group: downstream}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         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/pkgtests.yaml b/.github/workflows/pkgtests.yaml
index a57d628..5a63b39 100644
--- a/.github/workflows/pkgtests.yaml
+++ b/.github/workflows/pkgtests.yaml
@@ -11,9 +11,9 @@ jobs:
     strategy:
       matrix:
         version:
-          - '1.6'
-          - '1.7'
-          #- 'nightly'
+          - '1.8'
+          - '1.9'
+          - '1.10'
         os:
           - ubuntu-latest
           - macOS-latest
@@ -21,12 +21,12 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
-      - uses: actions/cache@v1
+      - uses: actions/cache@v4
         env:
           cache-name: cache-artifacts
         with: