diff --git a/requirements-dev.txt b/requirements-dev.txt
index 50ba735..805aa1c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -98,7 +98,7 @@ mdurl==0.1.2
     # via
     #   -r requirements.txt
     #   markdown-it-py
-more-itertools==10.2.0
+more-itertools==10.5.0
     # via
     #   -r requirements.txt
     #   cheroot
diff --git a/requirements.txt b/requirements.txt
index 4da0ddb..d1f740f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ markupsafe==2.1.5
     #   werkzeug
 mdurl==0.1.2
     # via markdown-it-py
-more-itertools==10.2.0
+more-itertools==10.5.0
     # via
     #   cheroot
     #   jaraco-functools