Backport PR #39177: CI: Pin nbformat to 5.0.8 (#39179)

meeseeksmachine · phofl · web-flow · commit fa2241de0ed1 · 2021-01-14T18:24:36.000-05:00
Co-authored-by: patrick &lt;61934744+phofl@users.noreply.github.com&gt;
diff --git a/environment.yml b/environment.yml
@@ -68,7 +68,7 @@ dependencies:
 
   # unused (required indirectly may be?)
   - ipywidgets
-  - nbformat
+  - nbformat=5.0.8
   - notebook>=5.7.5
   - pip
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -42,7 +42,7 @@ pytest-instafail
 seaborn
 statsmodels
 ipywidgets
-nbformat
+nbformat==5.0.8
 notebook>=5.7.5
 pip
 blosc
