diff --git a/requirements.txt b/requirements.txt
index 1f8dd8b1..a87357a0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,3 +9,4 @@ plotly
 shinywidgets
 ipyleaflet==0.17.4
 favicons
+griffe<1.0.0 # FIXME remove after posit-dev/py-shiny#1636