diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b4a233b95..15eca4c77 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -9,12 +9,12 @@ repos:
     - id: trailing-whitespace
     - id: end-of-file-fixer
 - repo: https://github.com/python-jsonschema/check-jsonschema
-  rev: 0.29.3
+  rev: 0.29.4
   hooks:
     - id: check-github-workflows
     - id: check-dependabot
 - repo: https://github.com/asottile/pyupgrade
-  rev: v3.17.0
+  rev: v3.19.0
   hooks:
     - id: pyupgrade
       args: ["--py38-plus"]
@@ -35,7 +35,7 @@ repos:
   hooks:
     - id: isort
 - repo: https://github.com/sirosen/slyp
-  rev: 0.7.1
+  rev: 0.8.1
   hooks:
     - id: slyp
 - repo: https://github.com/sirosen/texthooks
diff --git a/reference/_generate.py b/reference/_generate.py
index 11693d308..b4dc15409 100755
--- a/reference/_generate.py
+++ b/reference/_generate.py
@@ -75,7 +75,7 @@ def _format_option(optstr):
 
 
 class AdocPage:
-    def __init__(self, ctx):
+    def __init__(self, ctx) -> None:
         self.commandname = ctx.command_path
         self.short_help = ctx.command.get_short_help_str()
         self.description = textwrap.dedent(ctx.command.help).replace("\b\n", "")
diff --git a/src/globus_cli/endpointish/endpointish.py b/src/globus_cli/endpointish/endpointish.py
index 3506bc330..3ab75fcfd 100644
--- a/src/globus_cli/endpointish/endpointish.py
+++ b/src/globus_cli/endpointish/endpointish.py
@@ -19,7 +19,7 @@ def __init__(
         endpoint_id: str | uuid.UUID,
         *,
         transfer_client: globus_sdk.TransferClient,
-    ):
+    ) -> None:
         self._client = transfer_client
         self.endpoint_id = endpoint_id
 
diff --git a/src/globus_cli/globus_cli_flake8.py b/src/globus_cli/globus_cli_flake8.py
index c948f5ae4..ed1804b76 100644
--- a/src/globus_cli/globus_cli_flake8.py
+++ b/src/globus_cli/globus_cli_flake8.py
@@ -27,7 +27,7 @@ class Plugin:
 
     # args to init determine plugin behavior. see:
     # https://flake8.pycqa.org/en/latest/internal/utils.html#flake8.utils.parameters_for
-    def __init__(self, tree):
+    def __init__(self, tree) -> None:
         self.tree = tree
 
     # Plugin.run() is how checks will run. For detail, see implementation of:
@@ -40,7 +40,7 @@ def run(self):
 
 
 class ErrorRecordingVisitor(ast.NodeVisitor):
-    def __init__(self):
+    def __init__(self) -> None:
         super().__init__()
         self.collect = []
 
diff --git a/src/globus_cli/login_manager/errors.py b/src/globus_cli/login_manager/errors.py
index e41641d9f..05023d31e 100644
--- a/src/globus_cli/login_manager/errors.py
+++ b/src/globus_cli/login_manager/errors.py
@@ -11,7 +11,7 @@ def __init__(
         self,
         missing_servers: t.Sequence[str],
         context: LoginContext,
-    ):
+    ) -> None:
         self.missing_servers = missing_servers
 
         error_message = context.error_message or self._default_error_message()
diff --git a/src/globus_cli/parsing/param_types/task_path.py b/src/globus_cli/parsing/param_types/task_path.py
index bf4a7ff1b..268397404 100644
--- a/src/globus_cli/parsing/param_types/task_path.py
+++ b/src/globus_cli/parsing/param_types/task_path.py
@@ -66,7 +66,7 @@ def __init__(
         coerce_to_dir: bool = False,
         normalize: bool = True,
         require_absolute: bool = False,
-    ):
+    ) -> None:
         """
         Task Paths are paths for passing into Transfer or Delete tasks.
         They're only slightly more than string types: they can join themselves
diff --git a/src/globus_cli/termio/field.py b/src/globus_cli/termio/field.py
index a8d4b10d9..c36b37111 100644
--- a/src/globus_cli/termio/field.py
+++ b/src/globus_cli/termio/field.py
@@ -22,7 +22,7 @@ def __init__(
         *,
         wrap_enabled: bool = False,
         formatter: formatters.FieldFormatter[t.Any] = formatters.Str,
-    ):
+    ) -> None:
         self.name = name
         self.key = key
         self.wrap_enabled = wrap_enabled
diff --git a/src/globus_cli/termio/formatters/auth.py b/src/globus_cli/termio/formatters/auth.py
index dbe8bf8a2..84733a396 100644
--- a/src/globus_cli/termio/formatters/auth.py
+++ b/src/globus_cli/termio/formatters/auth.py
@@ -27,7 +27,7 @@ class PrincipalFormatter(FieldFormatter[t.Tuple[str, str]]):
       - fallback
     """
 
-    def __init__(self, auth_client: globus_sdk.AuthClient):
+    def __init__(self, auth_client: globus_sdk.AuthClient) -> None:
         self.auth_client = auth_client
         self.resolved_ids = globus_sdk.IdentityMap(auth_client)
 
diff --git a/tests/functional/flows/test_create_flow.py b/tests/functional/flows/test_create_flow.py
index b4b472ec6..243b6f9f0 100644
--- a/tests/functional/flows/test_create_flow.py
+++ b/tests/functional/flows/test_create_flow.py
@@ -48,7 +48,7 @@
 class IdentityPool:
     IDENTITY_DATA = FLOW_IDENTITIES
 
-    def __init__(self):
+    def __init__(self) -> None:
         self.identities = {}
         self.assigned_sets = {}