diff --git a/build.gradle.kts b/build.gradle.kts
index aac8981..a53e770 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -7,7 +7,7 @@ plugins {
 private val buildNumber: String? = System.getenv("GITHUB_RUN_NUMBER")
 private val isReleasePublication = System.getenv("RELEASE_PUBLICATION")?.toBoolean() ?: false
 
-private val baseVersion = "0.12.2"
+private val baseVersion = "0.13.1"
 
 allprojects {
     group = "com.agentclientprotocol"