diff --git a/lib/gvl_tracing/version.rb b/lib/gvl_tracing/version.rb
index f04d424..87a1e79 100644
--- a/lib/gvl_tracing/version.rb
+++ b/lib/gvl_tracing/version.rb
@@ -26,5 +26,5 @@
 # frozen_string_literal: true
 
 module GvlTracing
-  VERSION = "1.6.0.dev"
+  VERSION = "1.5.1"
 end