diff --git a/version.h b/version.h
index 4c08ff5581..233bfafb70 100644
--- a/version.h
+++ b/version.h
@@ -12,11 +12,11 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 40
+#define RUBY_PATCHLEVEL 41
 
 #define RUBY_RELEASE_YEAR 2021
 #define RUBY_RELEASE_MONTH 2
-#define RUBY_RELEASE_DAY 9
+#define RUBY_RELEASE_DAY 16
 
 #include "ruby/version.h"
 
diff --git a/vm_method.c b/vm_method.c
index 928b509651..51b8b6b07b 100644
--- a/vm_method.c
+++ b/vm_method.c
@@ -2107,7 +2107,7 @@ rb_mod_private(int argc, VALUE *argv, VALUE module)
 
 /*
  *  call-seq:
- *     ruby2_keywords(method_name, ...)    -> self
+ *     ruby2_keywords(method_name, ...)    -> nil
  *
  *  For the given method names, marks the method as passing keywords through
  *  a normal argument splat.  This should only be called on methods that