diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 940f628..303203e 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ '2.7', '3.0', '3.1', '3.2' ]
+        ruby: [ '2.7', '3.0', '3.1', '3.2', '3.3' ]
     env:
       RUBY_VERSION: ${{ matrix.ruby }}
     name: Ruby ${{ matrix.ruby }}
@@ -24,6 +24,8 @@ jobs:
         with:
           ruby-version: ${{ matrix.ruby }}
       - name: Install dependencies
-        run: dip provision
+        run: |
+          gem install dip
+          dip provision
       - name: Run tests
         run: dip test