diff --git a/gradle.properties b/gradle.properties
index 2dc7178..66bad7e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 group=org.sonarsource.slang
-version=1.20.0-SNAPSHOT
+version=1.21.0-SNAPSHOT
 description=Code Analyzer for Ruby
 projectTitle=Ruby
 org.gradle.jvmargs=-XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Xms256m -Xmx1024m