Bump version of pydata-sphinx-theme

Author: dstansby

requirements/requirements.in

@@ -3,10 +3,12 @@ bump2version
 cartopy==0.22.0
 flake8
 matplotlib==3.7.4
-mpl-sphinx-theme~=3.7.1
 pillow>=9
 pdfx
 pip-tools
 pre-commit
 scipy
+# Docs
+mpl-sphinx-theme==3.8.0
+pydata-sphinx-theme==0.13.3
 sphinx

requirements/requirements.txt

@@ -75,7 +75,7 @@ matplotlib==3.7.4
     #   mpl-sphinx-theme
 mccabe==0.7.0
     # via flake8
-mpl-sphinx-theme==3.7.1
+mpl-sphinx-theme==3.8.0
     # via -r requirements.in
 nodeenv==1.8.0
     # via pre-commit
@@ -113,8 +113,10 @@ pycodestyle==2.11.1
     #   flake8
 pycparser==2.21
     # via cffi
-pydata-sphinx-theme==0.15.2
-    # via mpl-sphinx-theme
+pydata-sphinx-theme==0.13.3
+    # via
+    #   -r requirements.in
+    #   mpl-sphinx-theme
 pyflakes==3.2.0
     # via flake8
 pygments==2.17.2