diff --git a/requirements-dev.txt b/requirements-dev.txt
index f1ed273..eaca6b9 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -29,7 +29,7 @@ mypy-extensions==0.4.3    # via mypy
 mypy==0.761
 packaging==19.2           # via pytest, tox
 pathspec==0.6.0           # via black
-pip-tools==4.3.0
+pip-tools==4.4.0
 pkginfo==1.5.0.1          # via twine
 pluggy==0.13.1            # via pytest, tox
 py==1.8.0                 # via pytest, tox