diff --git a/.azure-pipelines/docs-steps.yml b/.azure-pipelines/docs-steps.yml
index c0404aebdcc5c7..492e4e34bb2dab 100644
--- a/.azure-pipelines/docs-steps.yml
+++ b/.azure-pipelines/docs-steps.yml
@@ -12,7 +12,7 @@ steps:
   inputs:
     versionSpec: '>=3.6'
 
-- script: python -m pip install sphinx~=1.6.1 blurb python-docs-theme
+- script: python -m pip install sphinx==1.8.2 blurb python-docs-theme
   displayName: 'Install build dependencies'
 
 - ${{ if ne(parameters.latex, 'true') }}:
diff --git a/.travis.yml b/.travis.yml
index 27a240f1e68456..f44cc741ef4619 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -53,7 +53,7 @@ matrix:
         - cd Doc
         # Sphinx is pinned so that new versions that introduce new warnings won't suddenly cause build failures.
         # (Updating the version is fine as long as no warnings are raised by doing so.)
-        - python -m pip install sphinx~=1.6.1 blurb
+        - python -m pip install sphinx==1.8.2 blurb
       script:
         - make check suspicious html SPHINXOPTS="-q -W -j4"
     - os: linux