diff --git a/.circleci/config.yml b/.circleci/config.yml
index 17b50f1..8dabc3f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -21,7 +21,7 @@ commands:
       - sdkman/setup-sdkman
       - sdkman/sdkman-install:
           candidate: kotlin
-          version: 2.0.0
+          version: 2.0.20
       - run:
           name: Download dependencies
           command: ./bld download
diff --git a/.github/workflows/bld.yml b/.github/workflows/bld.yml
index 690e191..7b7a4b9 100644
--- a/.github/workflows/bld.yml
+++ b/.github/workflows/bld.yml
@@ -13,8 +13,8 @@ jobs:
 
     strategy:
       matrix:
-        java-version: [ 17, 21, 22 ]
-        kotlin-version: [ 1.9.24, 2.0.0 ]
+        java-version: [17, 21, 22]
+        kotlin-version: [1.9.24, 2.0.20]
 
     steps:
       - name: Checkout source repository