From c24a14520369fe5db1e4106a52e5650db3681cca Mon Sep 17 00:00:00 2001
From: Bobby McDonald <BobbyMcWho@users.noreply.github.com>
Date: Sat, 16 Nov 2019 22:46:01 -0500
Subject: versions should be strings

---
 .github/workflows/test.yml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index eb0a13c..52366d2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
     
     strategy:
       matrix:
-        ruby-version: [2.1.x, 2.2.x, 2.3.x, 2.4.x, 2.5.x, ruby-head]
+        ruby-version: [ '2.1.x', '2.2.x', '2.3.x', '2.4.x', '2.5.x', '2.6.x']
     steps:
     - uses: actions/checkout@v1
     - name: Set up Ruby ${{ matrix.ruby-version }}
@@ -23,3 +23,10 @@ jobs:
         gem install bundler
         bundle install --jobs 4 --retry 3
         bundle exec rake
+
+    - name: Cache Primes
+      id: cache-primes
+      uses: actions/cache@v1
+      with:
+        path: prime-numbers
+        key: ${{ runner.os }}-primes
-- 
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