diff --git a/.github/workflows/bld.yml b/.github/workflows/bld.yml
index 3511dc4..8e7d939 100644
--- a/.github/workflows/bld.yml
+++ b/.github/workflows/bld.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         java-version: [17, 21, 24]
-        kotlin-version: [1.9.25, 2.0.20, 2.1.10]
+        kotlin-version: [1.9.25, 2.0.20, 2.1.20]
 
     steps:
       - name: Checkout source repository