diff --git a/.github/workflows/debug_checks.yml b/.github/workflows/debug_checks.yml
index ef2883ab1..bc534eb24 100644
--- a/.github/workflows/debug_checks.yml
+++ b/.github/workflows/debug_checks.yml
@@ -22,7 +22,7 @@ jobs:
         with:
           version: '1.10'
           arch: x64
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/cache@v2
       - name: Debug test
         run: |
           # Hard code the debug level so that we can run without using the
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index f17bb33e4..4b68899e9 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -15,7 +15,7 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1.10'
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/cache@v2
       - name: Install dependencies
         run: |
           # Version 3.9.0 of matplotlib causes an error with PyPlot.jl, so pin
diff --git a/.github/workflows/examples.yml b/.github/workflows/examples.yml
index aaf329ac6..d819ef9fd 100644
--- a/.github/workflows/examples.yml
+++ b/.github/workflows/examples.yml
@@ -17,7 +17,7 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1.10'
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/cache@v2
       - name: Test examples
         run: |
           touch Project.toml
diff --git a/.github/workflows/longtest.yml b/.github/workflows/longtest.yml
index 80b9a9677..55daca762 100644
--- a/.github/workflows/longtest.yml
+++ b/.github/workflows/longtest.yml
@@ -22,7 +22,7 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1.10'
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
         with:
           project: 'moment_kinetics/'
diff --git a/.github/workflows/parallel_test.yml b/.github/workflows/parallel_test.yml
index e0b1aea43..405c5777e 100644
--- a/.github/workflows/parallel_test.yml
+++ b/.github/workflows/parallel_test.yml
@@ -21,7 +21,7 @@ jobs:
         with:
           version: '1.10'
           arch: x64
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/cache@v2
       - run: |
           touch Project.toml
           julia --project -O3 --check-bounds=no -e 'import Pkg; Pkg.add(["MPI", "MPIPreferences"]); using MPIPreferences; MPIPreferences.use_jll_binary("OpenMPI_jll")'
@@ -53,9 +53,8 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1.10'
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/cache@v2
       - run: |
-          export MPILIBPATH=$(find /opt/homebrew/Cellar/open-mpi/ -name libmpi.dylib)
           touch Project.toml
           julia --project -O3 --check-bounds=no -e 'import Pkg; Pkg.add(["MPI", "MPIPreferences"]); using MPIPreferences; MPIPreferences.use_jll_binary("OpenMPI_jll")'
           julia --project -O3 --check-bounds=no -e 'using MPI; MPI.install_mpiexecjl(; destdir=".")'
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index edb0bffa2..e75372944 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1.10'
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
         with:
           project: 'moment_kinetics/'
diff --git a/.github/workflows/test_scripts.yml b/.github/workflows/test_scripts.yml
index 858159d1a..98eede2b0 100644
--- a/.github/workflows/test_scripts.yml
+++ b/.github/workflows/test_scripts.yml
@@ -17,7 +17,7 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1.10'
-      - uses: julia-actions/cache@v1
+      - uses: julia-actions/cache@v2
       - name: Test test_scripts
         run: |
           touch Project.toml