diff --git a/gradle.properties b/gradle.properties
index aeb5d27..e78af2d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,6 +3,6 @@ org.gradle.parallel=true
 kotlin.js.generate.externals=true
 kotlin.incremental=true
 
-kotlin_version=1.4.32
+kotlin_version=1.5.31
 klassindex_version=4.1.0-rc.1
-plagubot_version=0.1.9
+plagubot_version=0.3.2