diff --git a/docs/requirements.txt b/docs/requirements.txt
index 6ba42b9..46c74c5 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,28 +1,8 @@
-Jinja2
-MarkupSafe
 astunparse
-coverage
-coveralls
-docutils==0.17.1
-flake8-blind-except
-flake8-coding
-flake8-debugger
-flake8-isort
-flake8-quotes
-idna
-isort
-pep8-naming
-pytest
-pytest-cov==2.12.1
-pytest-runner
-pyyaml
-rst2pdf
-snapshottest==0.5.0
+docutils
+setuptools
 sphinx
+sphinxcontrib-httpdomain
 sphinx-design
 sphinx-inline-tabs
-sphinx-testing
-sphinx_rtd_theme
-sphinxcontrib-httpdomain
-toml
-.
+sphinx-rtd-theme
diff --git a/requirements.txt b/requirements.txt
index 66f3d74..710d92e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,25 +1,18 @@
-Jinja2
-MarkupSafe
+# Direct dependencies
 astunparse
+docutils
+sphinxcontrib-httpdomain
+setuptools
+sphinx
+# Test and development dependencies
+black
 coverage
-coveralls
-docutils==0.17.1
-flake8-blind-except
-flake8-coding
-flake8-debugger
-flake8-isort
-flake8-quotes
-idna
-isort
-pep8-naming
 pytest
-pytest-cov==2.12.1
 pytest-runner
-pyyaml
-rst2pdf
-snapshottest==0.5.0
-sphinx
+pytest-cov
+isort
+snapshottest
 sphinx-testing
-sphinx_rtd_theme
-sphinxcontrib-httpdomain
-toml
+flake8
+sphinx-rtd-theme
+coveralls