diff --git a/chartpress.yaml b/chartpress.yaml
index 6dde31324c..8ef7d593d9 100644
--- a/chartpress.yaml
+++ b/chartpress.yaml
@@ -20,7 +20,7 @@ charts:
     #
     # baseVersion should be managed via tbump, see RELEASE.md for details
     #
-    baseVersion: "4.1.0"
+    baseVersion: "4.1.1-0.dev"
     repo:
       git: jupyterhub/helm-chart
       published: https://jupyterhub.github.io/helm-chart
diff --git a/tbump.toml b/tbump.toml
index dd2fc26a4f..f5b7a61471 100644
--- a/tbump.toml
+++ b/tbump.toml
@@ -5,7 +5,7 @@
 # Config reference: https://github.com/your-tools/tbump#readme
 #
 [version]
-current = "4.1.0"
+current = "4.1.1-0.dev"
 
 # match our prerelease prefixes
 # -alpha.1