diff --git a/fractal_server/__init__.py b/fractal_server/__init__.py
index b12a9d0837..fe015ed0ad 100644
--- a/fractal_server/__init__.py
+++ b/fractal_server/__init__.py
@@ -1 +1 @@
-__VERSION__ = "2.0.0a5"
+__VERSION__ = "2.0.0a6"
diff --git a/pyproject.toml b/pyproject.toml
index 8e1bcbe4e3..a6e37d2716 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "fractal-server"
-version = "2.0.0a5"
+version = "2.0.0a6"
 description = "Server component of the Fractal analytics platform"
 authors = [
     "Jacopo Nespolo <jacopo.nespolo@exact-lab.it>",
@@ -86,7 +86,7 @@ filterwarnings = [
 ]
 
 [tool.bumpver]
-current_version = "2.0.0a5"
+current_version = "2.0.0a6"
 version_pattern = "MAJOR.MINOR.PATCH[PYTAGNUM]"
 commit_message = "bump version {old_version} -> {new_version}"
 commit = true