diff --git a/requirements.txt b/requirements.txt
index 455ebab..367c4db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,13 +4,13 @@
 #
 #    pip-compile --output-file requirements.txt setup.py
 #
-boltons==18.0.0
+boltons==18.0.1
 #colorama==0.3.9           # via rainbow-logging-handler
 ipython-genutils==0.2.0
 #logutils==0.3.5           # via rainbow-logging-handler
 rainbow_logging_handler==2.2.2
 spectate==0.2.2
 toolz==0.9.0
-ruamel.yaml==0.15.42
+ruamel.yaml==0.15.79
 contextvars==2.3; python_version < '3.7'
-packaging==17.1
+packaging==18.0
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 1294648..cfc1b96 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,12 +1,12 @@
 #pip==10.0.0
 #pip-tools==1.11.0
 #wheel==0.31.0
-flake8==3.5.0
+flake8==3.6.0
 flake8-builtins==1.4.1
 flake8-mutable==1.2.0
 #coverage==4.5.1
-Sphinx==1.7.6
-pytest==3.7.1
+Sphinx==1.8.2
+pytest==4.0.0
 pytest-runner==4.2
-pytest-cov==2.5.1
-mypy==0.620; python_version >= '3.4'
+pytest-cov==2.6.0
+mypy==0.641; python_version >= '3.4'