diff --git a/pyproject.toml b/pyproject.toml
index e46a6d17..d9e9406c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "vitessce"
-version = "3.1.0"
+version = "3.1.1"
 authors = [
   { name="Mark Keller", email="mark_keller@hms.harvard.edu" },
 ]