diff --git a/pyproject.toml b/pyproject.toml
index 066fe0b6..3dcdb133 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -99,7 +99,7 @@ web = [
   # data serialization
   "pyarrow==20.0.0",
   # plots
-  "holoviews==1.20.2",
+  "holoviews==1.21.0",
   "hvplot==0.11.2",
   "matplotlib==3.10.3",
   "seaborn==0.13.2",