diff --git a/pyproject.toml b/pyproject.toml
index b1854b4..165a6e7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ dev = [
     "plumbum>=1.8,<3",
     "pytest>=8,<10",
     "pyyaml>=6,<7",
-    "basedpyright>=1.39,<1.40",
+    "basedpyright>=1.40,<1.41",
     "ruff>=0.15,<0.16",
     "pre-commit>=4,<5",
 ]
@@ -35,7 +35,7 @@ addopts = ["-q", "--strict-markers", "--strict-config", "--import-mode=importlib
 typeCheckingMode = "recommended"   # basedpyright's default; matches what the template ships
 failOnWarnings = true              # declare the gate's teeth explicitly (recommended defaults
                                    # it true, but pin it so a future mode/version drift under
-                                   # the <1.40 cap cannot silently un-fail the build)
+                                   # the basedpyright cap cannot silently un-fail the build)
 pythonVersion = "3.11"             # the requires-python floor
 include = ["tests"]                # the only Python surface; there is no src/
 exclude = ["template", "**/__pycache__", "**/.venv"]  # template/ is Jinja, never Python
diff --git a/uv.lock b/uv.lock
index 3fe19f8..ddf6355 100644
--- a/uv.lock
+++ b/uv.lock
@@ -13,14 +13,14 @@ wheels = [
 
 [[package]]
 name = "basedpyright"
-version = "1.39.10"
+version = "1.40.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "nodejs-wheel-binaries" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/68/43/ad2999f3b09eb2b1e59931d88fac0f7bcc9c17fc18c903268779bd10cc97/basedpyright-1.39.10.tar.gz", hash = "sha256:c8eaf5302f3265e275c7df4fba194d7afa7c1cb53fbfd448e90098360aca2c2e", size = 24740347, upload-time = "2026-08-13T17:09:02.51Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/3a/36/1cf637b15704e4c1f09f8bcc48ab3bfaff089e7466565bd34d8d1dcc03e9/basedpyright-1.40.2.tar.gz", hash = "sha256:d4db36d095230379acc66c7e5fba7e4b50ca902f6e803d696782dd031cb8d7d7", size = 25559682, upload-time = "2026-10-04T11:28:30.415Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/be/2a/a224054d75a58786c482f63b8ff2a09fc3362268bd1ebd0a61fb3f982153/basedpyright-1.39.10-py3-none-any.whl", hash = "sha256:cbd75d83c0be841329bcfef2d2f1182f152a6d975b8eb199e75cf5b8e9a3de78", size = 13482322, upload-time = "2026-08-13T17:08:59.074Z" },
+    { url = "https://files.pythonhosted.org/packages/de/53/0031b22e118264a57a3b64dfc0c8f0659b81af5bccd419ac62933013c601/basedpyright-1.40.2-py3-none-any.whl", hash = "sha256:3a53aeb93a86675ded0e12bc27bd8476c1742356de07ad8cab67bff18110c690", size = 13694487, upload-time = "2026-10-04T11:28:26.271Z" },
 ]
 
 [[package]]
@@ -581,7 +581,7 @@ dev = [
 
 [package.metadata.requires-dev]
 dev = [
-    { name = "basedpyright", specifier = ">=1.39,<1.40" },
+    { name = "basedpyright", specifier = ">=1.40,<1.41" },
     { name = "copier", specifier = ">=9.6,<10" },
     { name = "plumbum", specifier = ">=1.8,<3" },
     { name = "pre-commit", specifier = ">=4,<5" },