diff --git a/Gemfile.lock b/Gemfile.lock
index 26db3a7..ad1ec65 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -279,4 +279,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   1.17.3
+   2.1.2
diff --git a/action.yml b/action.yml
index 4095ed0..04ea2e4 100644
--- a/action.yml
+++ b/action.yml
@@ -23,7 +23,7 @@ inputs:
       origin/master
 runs:
   using: docker
-  image: "docker://docker.io/adwerx/pronto-ruby:0e8491"
+  image: "docker://docker.io/adwerx/pronto-ruby:2.3.0-rc2"
   args:
     - run
     - -r