diff --git a/gemoji.gemspec b/gemoji.gemspec
index e0211d1b..0bd5e33e 100644
--- a/gemoji.gemspec
+++ b/gemoji.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name    = "gemoji"
-  s.version = "4.0.0.pre0"
+  s.version = "4.0.0.rc1"
   s.summary = "Unicode emoji library"
   s.description = "Character information and metadata for Unicode emoji."