diff --git a/build.gradle.kts b/build.gradle.kts
index f705b34..b01278c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -7,7 +7,7 @@ buildscript {
 
 plugins {
     base
-    kotlin("multiplatform") version Versions.kotlin apply false
+    kotlin("multiplatform") version 1.7.20 apply false
 }
 
 // a small hack: the variable must be named like the property