diff --git a/lib/neo4j/version.rb b/lib/neo4j/version.rb
index cafc16bcd..a0858bb0a 100644
--- a/lib/neo4j/version.rb
+++ b/lib/neo4j/version.rb
@@ -1,3 +1,3 @@
 module Neo4j
-  VERSION = "4.0.0"
+  VERSION = '4.0.0'
 end