diff --git a/Project.toml b/Project.toml
index de10637..7822292 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "PolynomialBases"
 uuid = "c74db56a-226d-5e98-8bb0-a6049094aeea"
 author = ["Hendrik Ranocha"]
-version = "0.4.12"
+version = "0.4.13-pre"
 
 [deps]
 ArgCheck = "dce04be8-c92d-5529-be00-80e4d2c0e197"