diff --git a/mappings/mapper/build.gradle b/mappings/mapper/build.gradle
index 22d57dbb..8a32b9f5 100644
--- a/mappings/mapper/build.gradle
+++ b/mappings/mapper/build.gradle
@@ -19,7 +19,7 @@ dependencies {
 	implementation 'org.cadixdev:lorenz:0.5.7'
 
     // source code remapping
-    implementation 'org.cadixdev:mercury:0.1.1.fabric-SNAPSHOT'
+    implementation 'org.cadixdev:mercury:0.1.0.fabric-SNAPSHOT'
 }
 
 application {