diff --git a/build.gradle.kts b/build.gradle.kts
index fc95fa1..545218d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -18,7 +18,7 @@ val plugin = "${project.group}.${id}.asm.${project.name}Plugin"
 
 val redCoreVersion = "MC-1.8-1.12-" + "0.6-Dev-7"
 
-val mixinBooterVersion = "8.8"
+val mixinBooterVersion = "9.4"
 
 minecraft {
     mcVersion = "1.12.2"