diff --git a/.github/workflows/gcc.yml b/.github/workflows/gcc.yml
index 8f709545..e3bb0118 100644
--- a/.github/workflows/gcc.yml
+++ b/.github/workflows/gcc.yml
@@ -56,7 +56,6 @@ jobs:
           source spack/share/spack/setup-env.sh
           spack env create gsiutils-env gsi-utils/ci/spack.yaml
           spack env activate gsiutils-env
-          sudo apt install cmake
           spack external find
           spack add mpich@3.4.2
           spack concretize
diff --git a/.github/workflows/intel.yml b/.github/workflows/intel.yml
index b8b51ff6..6a607196 100644
--- a/.github/workflows/intel.yml
+++ b/.github/workflows/intel.yml
@@ -33,7 +33,7 @@ env:
 
 jobs:
   setup:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
       - name: checkout # This is for getting spack.yaml
@@ -70,7 +70,6 @@ jobs:
           spack env create gsiutils-env gsi-utils/ci/spack.yaml
           spack env activate gsiutils-env
           spack compiler find
-          sudo apt install cmake
           spack external find
           spack add intel-oneapi-mpi
           spack concretize
@@ -79,7 +78,7 @@ jobs:
 
   gsi-utils:
     needs: setup
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
       - name: install-intel
diff --git a/ci/spack.yaml b/ci/spack.yaml
index e2a7fa38..c79c3268 100644
--- a/ci/spack.yaml
+++ b/ci/spack.yaml
@@ -21,6 +21,7 @@ spack:
   - crtm@2.4.0
   - ncio@1.1.2
   - gsi-ncdiag@1.1.2
+  - cmake@3.20.1
   view: true
   concretizer:
     unify: true