diff --git a/docs/requirements.txt b/docs/requirements.txt
index 592faf7..a261d61 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
 docutils==0.14
 Pygments==2.3.1
-Sphinx==1.8.4
+Sphinx==2.0.0
 sphinxcontrib-websupport==1.1.0
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 9ececbb..48aff96 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,13 +1,13 @@
-attrs==18.2.0
-black==18.9b0
-coverage==4.5.2
+attrs==19.1.0
+black==19.3b0
+coverage==4.5.3
 flake8==3.7.7
-isort==4.3.9
+isort==4.3.16
 mypy==0.670
 pycodestyle==2.5.0
 pyflakes==2.1.1
-pytest==4.3.0
+pytest==4.4.0
 pytest-cov==2.6.1
-pytest-isort==0.2.1
-pytest-mock==1.10.1
+pytest-isort==0.3.1
+pytest-mock==1.10.3
 pytest-sugar==0.9.2