diff --git a/qcfractal/qcfractal/components/tasks/socket.py b/qcfractal/qcfractal/components/tasks/socket.py
index 21c4889ef..85fb6d847 100644
--- a/qcfractal/qcfractal/components/tasks/socket.py
+++ b/qcfractal/qcfractal/components/tasks/socket.py
@@ -190,6 +190,9 @@ def update_finished(
             manager.failures += len(tasks_failures)
             manager.rejected += len(tasks_rejected)
 
+            # Mark that we have heard from the manager
+            manager.modified_on = now_at_utc()
+
             # Automatically reset ones that should be reset
             if self.root_socket.qcf_config.auto_reset.enabled and to_be_reset:
                 self._logger.info(f"Auto resetting {len(to_be_reset)} records")
@@ -341,6 +344,9 @@ def claim_tasks(
 
             manager.claimed += len(found)
 
+            # Mark that we have heard from the manager
+            manager.modified_on = now_at_utc()
+
             self._logger.info(f"Manager {manager_name} has claimed {len(found)} new tasks")
 
         return found
diff --git a/qcfractal/qcfractal/components/tasks/test_socket_claim.py b/qcfractal/qcfractal/components/tasks/test_socket_claim.py
index 86d6bdbc3..440cdb1d0 100644
--- a/qcfractal/qcfractal/components/tasks/test_socket_claim.py
+++ b/qcfractal/qcfractal/components/tasks/test_socket_claim.py
@@ -4,11 +4,11 @@
 
 from __future__ import annotations
 
-from qcarchivetesting.testing_classes import QCATestingSnowflake
 from typing import TYPE_CHECKING
 
 import pytest
 
+from qcarchivetesting.testing_classes import QCATestingSnowflake
 from qcfractal.components.managers.db_models import ComputeManagerORM
 from qcfractal.components.optimization.testing_helpers import load_test_data as load_opt_test_data
 from qcfractal.components.record_db_models import BaseRecordORM
@@ -18,9 +18,11 @@
     generate_task_key as generate_td_task_key,
 )
 from qcfractal.testing_helpers import run_service
+from qcfractalcompute.compress import compress_result
 from qcportal.exceptions import ComputeManagerError
 from qcportal.managers import ManagerName
 from qcportal.record_models import PriorityEnum
+from qcportal.utils import now_at_utc
 
 if TYPE_CHECKING:
     from qcfractal.db_socket import SQLAlchemySocket
@@ -35,6 +37,64 @@
 input_spec_7, molecule_7, result_data_7 = load_sp_test_data("sp_rdkit_benzene_energy")
 
 
+def test_task_socket_update_manager_time(storage_socket: SQLAlchemySocket, session: Session):
+    # Test that claiming & returning updates the modified_on time of the manager
+    mname1 = ManagerName(cluster="test_cluster", hostname="a_host1", uuid="1234-5678-1234-5678")
+
+    mprog1 = {"qcengine": ["unknown"], "psi4": ["unknown"], "geometric": ["v3.0"]}
+
+    mid_1 = storage_socket.managers.activate(
+        name_data=mname1,
+        manager_version="v2.0",
+        username="bill",
+        programs=mprog1,
+        tags=["tag1"],
+    )
+
+    meta, id_1 = storage_socket.records.singlepoint.add(
+        [molecule_1], input_spec_1, "tag1", PriorityEnum.low, None, None, True
+    )
+
+    # claim up to two tasks
+    t0 = now_at_utc()
+    tasks = storage_socket.tasks.claim_tasks(mname1.fullname, mprog1, ["tag1"], 2)
+    t1 = now_at_utc()
+    assert len(tasks) == 1
+
+    # Check assignments
+    session.expire_all()
+
+    m1 = session.get(ComputeManagerORM, mid_1)
+    assert m1.claimed == 1
+    assert t0 < m1.modified_on < t1
+
+    # Claiming but getting nothing also updates the time
+    t0 = now_at_utc()
+    tasks0 = storage_socket.tasks.claim_tasks(mname1.fullname, mprog1, ["tag1"], 2)
+    t1 = now_at_utc()
+    assert len(tasks0) == 0
+
+    session.expire_all()
+    m1 = session.get(ComputeManagerORM, mid_1)
+    assert m1.claimed == 1
+    assert t0 < m1.modified_on < t1
+
+    # Return the task data
+    t0 = now_at_utc()
+    rmeta = storage_socket.tasks.update_finished(
+        mname1.fullname,
+        {
+            tasks[0]["id"]: compress_result(result_data_1.dict()),
+        },
+    )
+    t1 = now_at_utc()
+
+    assert rmeta.n_accepted == 1
+    session.expire_all()
+    m1 = session.get(ComputeManagerORM, mid_1)
+    assert t0 < m1.modified_on < t1
+
+
 def test_task_socket_claim_mixed(storage_socket: SQLAlchemySocket, session: Session):
     mname1 = ManagerName(cluster="test_cluster", hostname="a_host1", uuid="1234-5678-1234-5678")
     mname2 = ManagerName(cluster="test_cluster", hostname="a_host2", uuid="2234-5678-1234-5678")