diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index d373d676a..5d31da1fb 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -3,6 +3,25 @@ current_version = 0.25.1
 commit = True
 tag = True
 tag_name = {new_version}
+parse = ^
+	(?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)
+	(?:(?P<prerel>[abc]|rc|dev)(?P<prerelversion>\d+))?
+serialize = 
+	{major}.{minor}.{patch}{prerel}{prerelversion}
+	{major}.{minor}.{patch}
 
 [bumpversion:file:scrapy/VERSION]
 
+[bumpversion:part:prerel]
+optional_value = gamma
+values =
+	dev
+	rc
+	gamma
+
+[bumpversion:part:prerelversion]
+values = 
+	1
+	2
+	3
+