diff --git a/api/CHANGELOG.md b/api/CHANGELOG.md
index 8e2130fb88..a684591651 100644
--- a/api/CHANGELOG.md
+++ b/api/CHANGELOG.md
@@ -18,6 +18,7 @@ All notable changes to the **Prowler API** are documented in this file.
 ### 🐞 Fixed
 
 - Database connections no longer leak under the ASGI worker, which previously exhausted the read replica's connection slots and caused 500s on read endpoints [(#11640)](https://github.com/prowler-cloud/prowler/pull/11640)
+- Gunicorn keep-alive timeout now exceeds the load balancer idle timeout, stopping 502s from reused connections [(#11647)](https://github.com/prowler-cloud/prowler/pull/11647)
 
 ### 🔐 Security
 
diff --git a/api/src/backend/config/guniconf.py b/api/src/backend/config/guniconf.py
index 63472feec8..3b8b7dbe8c 100644
--- a/api/src/backend/config/guniconf.py
+++ b/api/src/backend/config/guniconf.py
@@ -56,6 +56,12 @@ preload_app = not DEBUG
 # that may take longer, such as complex API operations.
 timeout = env.int("GUNICORN_TIMEOUT", default=120)
 
+# HTTP keep-alive idle timeout. Must exceed the idle timeout of the proxy or load
+# balancer in front of gunicorn, or it reuses a connection gunicorn just closed
+# and returns a 502. Default clears the common 60s; raise `GUNICORN_KEEPALIVE` to
+# stay above a longer one.
+keepalive = env.int("GUNICORN_KEEPALIVE", default=75)
+
 # Logging
 logconfig_dict = DJANGO_LOGGERS
 gunicorn_logger = logging.getLogger(BackendLogger.GUNICORN)