diff --git a/requirements/dev.txt b/requirements/dev.txt
index 48e1ea9b..f9ca816b 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -16,7 +16,7 @@ click==7.1.2              # via pip-tools
 distlib==0.3.0            # via virtualenv
 docutils==0.16            # via sphinx
 filelock==3.0.12          # via tox, virtualenv
-greenlet==0.4.15          # via -r requirements/tests.in
+greenlet==0.4.16          # via -r requirements/tests.in
 identify==1.4.16          # via pre-commit
 idna==2.9                 # via requests
 imagesize==1.2.0          # via sphinx
diff --git a/requirements/tests.txt b/requirements/tests.txt
index 532838d4..9ed6d7e4 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -6,7 +6,7 @@
 #
 attrs==19.3.0             # via pytest
 blinker==1.4              # via -r requirements/tests.in
-greenlet==0.4.15          # via -r requirements/tests.in
+greenlet==0.4.16          # via -r requirements/tests.in
 more-itertools==8.3.0     # via pytest
 packaging==20.4           # via pytest
 pluggy==0.13.1            # via pytest