diff --git a/pyproject.toml b/pyproject.toml
index 98662e33..30aabc64 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ optional-dependencies.dev = [
     "black==24.10.0",
     "coverage==7.6.1",
     "lxml-stubs==0.5.1",
-    "mypy==1.11.2",
+    "mypy==1.12.0",
     "pip-tools==7.4.1",
     "pylint==3.2.7",
     "vulture==2.13",
diff --git a/requirements.txt b/requirements.txt
index a0b6b6b7..fda144b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ lxml==5.3.0
     #   python-pptx
 mccabe==0.7.0
     # via pylint
-mypy==1.11.2
+mypy==1.12.0
     # via ictu-kwaliteitsaanpak (pyproject.toml)
 mypy-extensions==1.0.0
     # via