diff --git a/docs/source/conf.py b/docs/source/conf.py
index 9ce8ef24..7c426e42 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -43,7 +43,6 @@
     'sphinx.ext.viewcode',
     'sphinx.ext.intersphinx',
     'sphinx.ext.autosectionlabel',
-    'sphinx-jsonschema',
     'nbsphinx',
 ]
 
diff --git a/environment-dev.yml b/environment-dev.yml
index 1a660a18..7e6ad0ae 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -12,5 +12,4 @@ dependencies:
   - pip
   - pip:
     - sphinx-intl
-    - sphinx-jsondomain # unmaintained and has sphinx <2.0 hardcoded in dependencies
-    - sphinx-jsonschema
+  - Jinja2<=3.0.3
diff --git a/setup.py b/setup.py
index 9a62dc9c..75c979d7 100644
--- a/setup.py
+++ b/setup.py
@@ -18,8 +18,6 @@
             "sphinx>=1.4",
             "sphinx-intl",
             "sphinx_rtd_theme",
-            "sphinx-jsondomain",  # unmaintained and has sphinx <2.0 hardcoded in dependencies
-            "sphinx-jsonschema",
             "nbsphinx",
             "jinja2",
             "jupyter",