diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d89a0875440..2a63ee15af0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -154,7 +154,7 @@ spinach 9 10: *spinach-knapsack
   <<: *rspec-knapsack
   <<: *ruby-21
 
-.spinach-knapsack-ruby23: &spinach-knapsack-ruby21
+.spinach-knapsack-ruby21: &spinach-knapsack-ruby21
   <<: *spinach-knapsack
   <<: *ruby-21