diff --git a/lib/irb/version.rb b/lib/irb/version.rb
index 7dcdd846d..e82e9fff0 100644
--- a/lib/irb/version.rb
+++ b/lib/irb/version.rb
@@ -11,7 +11,7 @@
 #
 
 module IRB # :nodoc:
-  VERSION = "1.3.8.pre.3"
+  VERSION = "1.3.8.pre.4"
   @RELEASE_VERSION = VERSION
-  @LAST_UPDATE_DATE = "2021-08-30"
+  @LAST_UPDATE_DATE = "2021-08-31"
 end