diff --git a/mypy-requirements.txt b/mypy-requirements.txt
index 5cb8e6fe9..efd9e8059 100644
--- a/mypy-requirements.txt
+++ b/mypy-requirements.txt
@@ -1,4 +1,4 @@
-mypy==1.18.2  # also update pyproject.toml
+mypy==1.19.0  # also update pyproject.toml
 ruamel.yaml>=0.16.0,<0.19
 cwl-utils>=0.32
 cwltest
diff --git a/pyproject.toml b/pyproject.toml
index 11fd829bc..c0436ae53 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 requires = [
     "setuptools>=45",
     "setuptools_scm[toml]>=8.0.4,<10",
-    "mypy==1.18.2",  # also update mypy-requirements.txt
+    "mypy==1.19.0",  # also update mypy-requirements.txt
     "types-requests",
     "types-psutil",
     "ruamel.yaml>=0.16.0,<0.19",