diff --git a/redbot/__init__.py b/redbot/__init__.py
index 435bdb95fa0..3191474027e 100644
--- a/redbot/__init__.py
+++ b/redbot/__init__.py
@@ -339,7 +339,7 @@ def _early_init():
 
 
 # This is bumped automatically by release workflow (`.github/workflows/scripts/bump_version.py`)
-_VERSION = "3.5.8"
+_VERSION = "3.5.9.dev1"
 
 __version__, version_info = VersionInfo._get_version()