diff --git a/Cargo.toml b/Cargo.toml
index 02a7c296..21c7fbb9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ license = "MIT"
 name = "ruma-signatures"
 readme = "README.md"
 repository = "https://github.com/ruma/ruma-signatures"
-version = "0.5.0"
+version = "0.6.0-dev.1"
 
 [dependencies]
 base64 = "0.12.0"