diff --git a/gradle.properties b/gradle.properties
index c54b38e03..8b5996b84 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 projectName=dataframe
-version=0.15.0
+version=0.15.0-RC1
 jupyterApiTCRepo=
 kotlin.jupyter.add.scanner=false
 org.gradle.jvmargs=-Xmx4G