diff --git a/environment.yml b/environment.yml
index c23bb99c736dc..a90f28a2c9e16 100644
--- a/environment.yml
+++ b/environment.yml
@@ -34,7 +34,7 @@ dependencies:
   - gitdb
   - numpydoc < 1.2  # 2021-02-09 1.2dev breaking CI
   - pandas-dev-flaker=0.4.0
-  - pydata-sphinx-theme
+  - pydata-sphinx-theme=0.8.0
   - pytest-cython
   - sphinx
   - sphinx-panels
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 6caa9a7512faf..bb6c5d9427d38 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -20,7 +20,7 @@ gitpython
 gitdb
 numpydoc < 1.2
 pandas-dev-flaker==0.4.0
-pydata-sphinx-theme
+pydata-sphinx-theme==0.8.0
 pytest-cython
 sphinx
 sphinx-panels