diff --git a/doc/python/3d-surface-plots.md b/doc/python/3d-surface-plots.md
index fbace329f60..a7b561e7a6c 100644
--- a/doc/python/3d-surface-plots.md
+++ b/doc/python/3d-surface-plots.md
@@ -77,7 +77,7 @@ fig.show()
 #### Surface Plot With Contours
 
 
-Display and customize contour data for each axis using the `contours` attribute ([reference](plotly.com/python/reference/surface/#surface-contours)).
+Display and customize contour data for each axis using the `contours` attribute ([reference](https://plotly.com/python/reference/surface/#surface-contours)).
 
 ```python
 import plotly.graph_objects as go
diff --git a/packages/python/plotly/setup.py b/packages/python/plotly/setup.py
index 178f176457c..a9a2ac5869f 100644
--- a/packages/python/plotly/setup.py
+++ b/packages/python/plotly/setup.py
@@ -420,7 +420,7 @@ def run(self):
 
         # update plotly.js version in _plotlyjs_version
         rev = build_info["vcs_revision"]
-        date = build_info["committer_date"]
+        date = str(build_info["committer_date"])
         version = "_".join([self.devrepo, self.devbranch, date[:10], rev[:8]])
         overwrite_plotlyjs_version_file(version)