diff --git a/pyproject.toml b/pyproject.toml
index 86717ad..c273666 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ ccdproc = ">=2.4.2,<2.5.0"
 numpy = "==1.26.4"
 scipy = ">=1.14.1,<1.15.0"
 pyerfa = ">=2.0.1.5,<3.0.0.0"
-bokeh = ">=2.4.3,<2.5.0"
+bokeh = ">=2.4.3,<3.9.0"
 jinja2 = ">=3.0.3,<3.1.0"
 psutil = ">=5.7.0,<5.8.0"
 pytest = ">=5.4.1,<5.5.0"