diff --git a/pyhealth/calib/predictionset/favmac/core.py b/pyhealth/calib/predictionset/favmac/core.py
index 7e9b7d354..700a80a46 100644
--- a/pyhealth/calib/predictionset/favmac/core.py
+++ b/pyhealth/calib/predictionset/favmac/core.py
@@ -116,7 +116,7 @@ def _greedy_sequence(self, pred:np.ndarray):
             if self.proxy_fn.is_additive():
                 Ss, _ = self.util_fn.greedy_maximize_seq(pred=pred, d_proxy = self.proxy_fn.values * (1-pred))
                 return Ss, list(map(proxy_fn, Ss))
-        except:
+        except Exception:
             pass
 
         Ss = [np.zeros(len(pred), dtype=int)]
diff --git a/pyhealth/calib/predictionset/scrib/quicksearch.py b/pyhealth/calib/predictionset/scrib/quicksearch.py
index 09ebf910f..0910a2b34 100644
--- a/pyhealth/calib/predictionset/scrib/quicksearch.py
+++ b/pyhealth/calib/predictionset/scrib/quicksearch.py
@@ -9,7 +9,7 @@
     pyximport.install()
     from . import quicksearch_cython as cdc
     _CYTHON_ENABLED = True
-except:
+except ImportError:
     print("This is a warning of potentially slow compute. You could uncomment this line and use the Python implementation instead of Cython.")
 
 __all__ = ['loss_overall', 'loss_classspecific',
diff --git a/pyhealth/datasets/base_dataset.py b/pyhealth/datasets/base_dataset.py
index 0e4280aab..a264c3d01 100644
--- a/pyhealth/datasets/base_dataset.py
+++ b/pyhealth/datasets/base_dataset.py
@@ -832,7 +832,7 @@ def _task_transform(
                         while not result.ready():
                             try:
                                 progress.update(queue.get(timeout=1))
-                            except:
+                            except Exception:
                                 pass
 
                         # remaining items
@@ -897,7 +897,7 @@ def _proc_transform(
                         while not result.ready():
                             try:
                                 progress.update(queue.get(timeout=1))
-                            except:
+                            except Exception:
                                 pass
 
                         # remaining items
diff --git a/pyhealth/metrics/ranking.py b/pyhealth/metrics/ranking.py
index b19f5107d..1f2e4612c 100644
--- a/pyhealth/metrics/ranking.py
+++ b/pyhealth/metrics/ranking.py
@@ -33,7 +33,7 @@ def ranking_metrics_fn(qrels: Dict[str, Dict[str, int]],
     """
     try:
         import pytrec_eval
-    except:
+    except ImportError:
         raise ImportError("pytrec_eval is not installed. Please install it manually by running \
             'pip install pytrec_eval'.")
     ret = {}