diff --git a/convention-plugins/src/main/kotlin/root.publication.gradle.kts b/convention-plugins/src/main/kotlin/root.publication.gradle.kts
index b9a60c1..4d734b2 100644
--- a/convention-plugins/src/main/kotlin/root.publication.gradle.kts
+++ b/convention-plugins/src/main/kotlin/root.publication.gradle.kts
@@ -4,7 +4,7 @@ plugins {
 object Conf {
     const val GROUP = "net.kigawa"
     // Base version - will be modified based on branch name if available
-    const val BASE_VERSION = "1.0.1"
+    const val BASE_VERSION = "1.2.1"
 }
 
 // Determine version based on branch name