diff --git a/flake.nix b/flake.nix
index 74a01c561..55a4fb296 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,7 +18,7 @@
       pkgs = import nixpkgs { system = "x86_64-linux"; overlays = [ (import mozilla-overlay) ]; };
       pkgs-aarch64 = import nixpkgs { system = "aarch64-linux"; };
 
-      artiqVersionMajor = 8;
+      artiqVersionMajor = 9;
       artiqVersionMinor = self.sourceInfo.revCount or 0;
       artiqVersionId = self.sourceInfo.shortRev or "unknown";
       artiqVersion = (builtins.toString artiqVersionMajor) + "." + (builtins.toString artiqVersionMinor) + "+" + artiqVersionId + ".beta";
diff --git a/versioneer.py b/versioneer.py
index dcb8bf1b2..eae28b2c6 100644
--- a/versioneer.py
+++ b/versioneer.py
@@ -11,7 +11,7 @@ def get_rev():
 """
 
 def get_version():
-    return os.getenv("VERSIONEER_OVERRIDE", default="8.0+unknown.beta")
+    return os.getenv("VERSIONEER_OVERRIDE", default="9.0+unknown.beta")
 
 def get_rev():
     return os.getenv("VERSIONEER_REV", default="unknown")