diff --git a/gradle.properties b/gradle.properties
index 3d419b2bd..ba3ee577a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 org.gradle.jvmargs=-Xmx3G
 modGroup=me.zeroeightsix
 modVersion=1.12.xx-dev
-kotlin_version=1.4.20
+kotlin_version=1.4.21
 kotlinx_coroutines_version=1.4.1
\ No newline at end of file