diff --git a/cmd/lib/ci_matrix.rb b/cmd/lib/ci_matrix.rb
index f1afccbf3e..c5bde88ea3 100644
--- a/cmd/lib/ci_matrix.rb
+++ b/cmd/lib/ci_matrix.rb
@@ -8,9 +8,8 @@ module CiMatrix
   MAX_JOBS = 256
 
   RUNNERS = {
-    { symbol: :catalina, name: "macos-10.15" } => 0,
-    { symbol: :big_sur,  name: "macos-11" }    => 0.9,
-    { symbol: :monterey, name: "macos-12" }    => 0.1,
+    { symbol: :big_sur,  name: "macos-11" } => 0.9,
+    { symbol: :monterey, name: "macos-12" } => 0.1,
   }.freeze
 
   # This string uses regex syntax and is intended to be interpolated into