diff --git a/configs/workqueue.yaml b/configs/workqueue.yaml
index b4f0ad4..4d6773e 100644
--- a/configs/workqueue.yaml
+++ b/configs/workqueue.yaml
@@ -12,4 +12,5 @@ ReferenceEvaluation:
  cores_per_worker: 1
  mpi_command: 'mpirun -np {}' # cp2k on conda-forge comes with OpenMPI (not MPICH as in container)
 mode: 'workqueue'
+workqueue_use_coprocess: false
 ...
diff --git a/psiflow/execution.py b/psiflow/execution.py
index 417d73f..b6f8d75 100644
--- a/psiflow/execution.py
+++ b/psiflow/execution.py
@@ -253,13 +253,13 @@ def parse_config(yaml_dict: dict):
             "parsl_log_level": "INFO",
             "psiflow_log_level": "INFO",
             "usage_tracking": True,
-            "retries": 1,
+            "retries": 2,
             "strategy": "simple",
             "max_idletime": 20,
             "default_threads": 1,
             "htex_address": None,
             "mode": "workqueue",
-            "workqueue_use_coprocess": True,
+            "workqueue_use_coprocess": False,  # CP2K doesn't like this
         }
         forced = {
             "initialize_logging": False,  # manual; to move parsl.log one level up