diff --git a/airflow-core/pyproject.toml b/airflow-core/pyproject.toml
index a4b46a3ea297b..65e764ce12f22 100644
--- a/airflow-core/pyproject.toml
+++ b/airflow-core/pyproject.toml
@@ -59,6 +59,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: System :: Monitoring",
 ]
 
diff --git a/chart/pyproject.toml b/chart/pyproject.toml
index 35816e6abc98e..6ddc0259c45b3 100644
--- a/chart/pyproject.toml
+++ b/chart/pyproject.toml
@@ -42,6 +42,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: System :: Monitoring",
     "Topic :: System :: Monitoring",
 ]
diff --git a/clients/python/pyproject.toml b/clients/python/pyproject.toml
index 35e2814978381..fb00e7bfab19b 100644
--- a/clients/python/pyproject.toml
+++ b/clients/python/pyproject.toml
@@ -45,6 +45,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: System :: Monitoring",
 ]