diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 3a0ac874..0fa9efd2 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.6.6.dev0
+current_version = 1.6.6.dev1
 commit = True
 tag = False
 parse = ^
diff --git a/docs/conf.py b/docs/conf.py
index 0d97640d..c6dc9ba7 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -9,7 +9,7 @@ sys.path.insert(0, os.path.abspath("../src"))
 # -- Project information ---------------------------------------------------------------
 
 author = "Sam Schott"
-version = "1.6.6.dev0"
+version = "1.6.6.dev1"
 release = version
 project = "Maestral"
 title = "Maestral API Documentation"
diff --git a/setup.cfg b/setup.cfg
index e1276c2d..830b6d31 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = maestral
-version = 1.6.6.dev0
+version = 1.6.6.dev1
 author = Sam Schott
 author_email = sam.schott@outlook.com
 license = MIT
diff --git a/src/maestral/__init__.py b/src/maestral/__init__.py
index 3b36ba26..1cd8bdfa 100644
--- a/src/maestral/__init__.py
+++ b/src/maestral/__init__.py
@@ -1,7 +1,7 @@
 import warnings
 
 
-__version__ = "1.6.6.dev0"
+__version__ = "1.6.6.dev1"
 __author__ = "Sam Schott"
 __url__ = "https://maestral.app"