diff --git a/api/chalicelib/core/health.py b/api/chalicelib/core/health.py
index c7e67734d..f1fec41fa 100644
--- a/api/chalicelib/core/health.py
+++ b/api/chalicelib/core/health.py
@@ -10,9 +10,7 @@ from chalicelib.utils import pg_client
 def app_connection_string(name, port, path):
     namespace = config("POD_NAMESPACE", default="app")
     conn_string = config("CLUSTER_URL", default="svc.cluster.local")
-    return (
-        "http://" + name + "." + namespace + "." + conn_string + ":" + port + "/" + path
-    )
+    return f"http://{name}.{namespace}.{conn_string}:{port}/{path}"
 
 
 HEALTH_ENDPOINTS = {
diff --git a/ee/api/chalicelib/core/health.py b/ee/api/chalicelib/core/health.py
index b1cd6ad58..70ecdd674 100644
--- a/ee/api/chalicelib/core/health.py
+++ b/ee/api/chalicelib/core/health.py
@@ -11,9 +11,7 @@ from chalicelib.utils import pg_client, ch_client
 def app_connection_string(name, port, path):
     namespace = config("POD_NAMESPACE", default="app")
     conn_string = config("CLUSTER_URL", default="svc.cluster.local")
-    return (
-        "http://" + name + "." + namespace + "." + conn_string + ":" + port + "/" + path
-    )
+    return f"http://{name}.{namespace}.{conn_string}:{port}/{path}"
 
 
 HEALTH_ENDPOINTS = {