diff --git a/VERSION b/VERSION
index f8e233b..9ab8337 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.9.0
+1.9.1
diff --git a/conda-recipe/meta.yaml b/conda-recipe/meta.yaml
index a7b9c77..dbbb1bf 100644
--- a/conda-recipe/meta.yaml
+++ b/conda-recipe/meta.yaml
@@ -1,6 +1,6 @@
 package:
   name: pocean-core
-  version: "1.9.0"
+  version: "1.9.1"
 
 source:
   path: ../
diff --git a/docs/conf.py b/docs/conf.py
index 51010ae..1774519 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -73,9 +73,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = "1.9.0"
+version = "1.9.1"
 # The full version, including alpha/beta/rc tags.
-release = "1.9.0"
+release = "1.9.1"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/pocean/__init__.py b/pocean/__init__.py
index af1a5b8..13a0d71 100644
--- a/pocean/__init__.py
+++ b/pocean/__init__.py
@@ -6,4 +6,4 @@
 logger = logging.getLogger("pocean")
 logger.addHandler(logging.NullHandler())
 
-__version__ = "1.9.0"
+__version__ = "1.9.1"