diff --git a/gradle.properties b/gradle.properties
index 30ada3f51a..850e7f38c9 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,7 +2,7 @@ org.gradle.jvmargs=-Xmx2G
 
 # Fabric (https://fabricmc.net/develop)
 minecraft_version=1.21.1
-yarn_mappings=1.21+build.3
+yarn_mappings=1.21.1+build.3
 loader_version=0.15.11
 fapi_version=0.102.1+1.21.1