diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 5f7c66023b..ad8b4c7bdc 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -30,7 +30,7 @@ repos:
         files: \.py$
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.982
+    rev: v0.990
     hooks:
       - id: mypy
         additional_dependencies: [types-requests]
@@ -47,7 +47,7 @@ repos:
       - id: mdformat
 
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.2.0
+    rev: v3.2.2
     hooks:
       - id: pyupgrade
         args: [--py38-plus]
@@ -76,7 +76,7 @@ repos:
         stages: [manual]
 
   - repo: https://github.com/sirosen/check-jsonschema
-    rev: 0.18.4
+    rev: 0.19.1
     hooks:
       - id: check-jsonschema
         name: "Check GitHub Workflows"
diff --git a/jupyter_server/serverapp.py b/jupyter_server/serverapp.py
index b39bb097d6..e4e8d83880 100644
--- a/jupyter_server/serverapp.py
+++ b/jupyter_server/serverapp.py
@@ -2292,7 +2292,7 @@ def shutdown_no_activity(self):
         if len(km) != 0:
             return  # Kernels still running
 
-        if self.extension_manager.any_activity:
+        if self.extension_manager.any_activity():
             return
 
         seconds_since_active = (utcnow() - self.web_app.last_activity()).total_seconds()