diff --git a/pyproject.toml b/pyproject.toml
index 0060081e..75dfc6c2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,8 @@ dependencies = [
     "scikit-misc>=0.1.3",
     "matplotlib>=3.4",
     "seaborn",
-    "tqdm"
+    "tqdm",
+    "statsmodels>=0.12.0",
 ]
 
 [project.optional-dependencies]
diff --git a/rapids_singlecell/__init__.py b/rapids_singlecell/__init__.py
index ca92961e..78e86eea 100755
--- a/rapids_singlecell/__init__.py
+++ b/rapids_singlecell/__init__.py
@@ -5,4 +5,4 @@
 from . import pl
 from . import gr
 
-__version__ = '0.6.0'
+__version__ = '0.6.1'