diff --git a/src/ansys/api/acp/VERSION b/src/ansys/api/acp/VERSION
index 0d91a54..5acf154 100644
--- a/src/ansys/api/acp/VERSION
+++ b/src/ansys/api/acp/VERSION
@@ -1 +1 @@
-0.3.0
+0.4.0.dev0