README.md in rake-compiler-dock-1.2.0 vs README.md in rake-compiler-dock-1.2.1

@@ -106,10 +106,10 @@
 jobs:
   native-gem:
     name: "native-gem"
     runs-on: ubuntu-latest
     container:
-      image: "larskanis/rake-compiler-dock-mri-x86_64-linux:1.2.0"
+      image: "larskanis/rake-compiler-dock-mri-x86_64-linux:1.2.1"
     steps:
       - uses: actions/checkout@v2
       - run: bundle install && bundle exec rake gem:x86_64-linux:rcd
       - uses: actions/upload-artifact@v2
         with: