diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 64250575..0fe9092f 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -32,6 +32,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install ca-certificates
           mkdir junit
+          gem install parallel_rspec
           bundle exec parallel_rspec --prefix-output-with-test-env-number --first-is-1 -- spec/${{ matrix.type }}
       - uses: actions/upload-artifact@v3
         with:
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 4c18f410..78c546b1 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -19,6 +19,7 @@ jobs:
 
       - name: Build Documentation
         run: |
+          gem install parallel_rspec
           bundle exec yard --readme INTRO.md --tag "spec:Specification"
           ls -al doc/
       - name: Configure AWS Credentials