diff --git a/.changes/unreleased/Dependencies-20230817-121652.yaml b/.changes/unreleased/Dependencies-20230817-121652.yaml
new file mode 100644
index 000000000..9f7440852
--- /dev/null
+++ b/.changes/unreleased/Dependencies-20230817-121652.yaml
@@ -0,0 +1,6 @@
+kind: "Dependencies"
+body: "Bump mypy from 1.5.0 to 1.5.1"
+time: 2023-08-17T12:16:52.00000Z
+custom:
+  Author: dependabot[bot]
+  PR: 749
diff --git a/dev-requirements.txt b/dev-requirements.txt
index cc9aa2432..5a25955fa 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -13,7 +13,7 @@ flake8~=6.1
 flaky~=3.7
 freezegun~=1.2
 ipdb~=0.13.13
-mypy==1.5.0  # patch updates have historically introduced breaking changes
+mypy==1.5.1  # patch updates have historically introduced breaking changes
 pip-tools~=7.3
 pre-commit~=3.3
 pre-commit-hooks~=4.4