diff --git a/billiard/compat.py b/billiard/compat.py
index b20677c..59de905 100644
--- a/billiard/compat.py
+++ b/billiard/compat.py
@@ -102,7 +102,7 @@ def get_fdmax(default=None):
     """
     try:
         return os.sysconf('SC_OPEN_MAX')
-    except:
+    except Exception:
         pass
     if resource is None:  # Windows
         return default
diff --git a/billiard/connection.py b/billiard/connection.py
index ecfd9ee..baf2167 100644
--- a/billiard/connection.py
+++ b/billiard/connection.py
@@ -315,7 +315,7 @@ def _send_bytes(self, buf):
 
                         [ov.event], False, INFINITE)
                     assert waitres == WAIT_OBJECT_0
-            except:
+            except Exception:
                 ov.cancel()
                 raise
             finally:
@@ -735,7 +735,7 @@ def accept(self):
                 try:
                     _winapi.WaitForMultipleObjects(
                         [ov.event], False, INFINITE)
-                except:
+                except Exception:
                     ov.cancel()
                     _winapi.CloseHandle(handle)
                     raise
diff --git a/billiard/forkserver.py b/billiard/forkserver.py
index 9e6a9c9..f1cec91 100644
--- a/billiard/forkserver.py
+++ b/billiard/forkserver.py
@@ -75,7 +75,7 @@ def connect_to_new_process(self, fds):
             try:
                 reduction.sendfds(client, allfds)
                 return parent_r, parent_w
-            except:
+            except Exception:
                 os.close(parent_r)
                 os.close(parent_w)
                 raise
@@ -124,7 +124,7 @@ def ensure_running(self):
                     args = [exe] + util._args_from_interpreter_flags()
                     args += ['-c', cmd]
                     spawnv_passfds(exe, args, fds_to_pass)
-                except:
+                except Exception:
                     os.close(alive_w)
                     raise
                 finally:
diff --git a/billiard/managers.py b/billiard/managers.py
index 6a496c6..c208949 100644
--- a/billiard/managers.py
+++ b/billiard/managers.py
@@ -348,7 +348,7 @@ def shutdown(self, c):
         try:
             util.debug('Manager received shutdown message')
             c.send(('#RETURN', None))
-        except:
+        except Exception:
             import traceback
             traceback.print_exc()
         finally:
diff --git a/billiard/popen_spawn_win32.py b/billiard/popen_spawn_win32.py
index 2325492..ba27524 100644
--- a/billiard/popen_spawn_win32.py
+++ b/billiard/popen_spawn_win32.py
@@ -64,7 +64,7 @@ def __init__(self, process_obj):
                     spawn.get_executable(), cmd,
                     None, None, False, 0, None, None, None)
                 close_thread_handle(ht)
-            except:
+            except Exception:
                 _winapi.CloseHandle(rhandle)
                 raise
 
diff --git a/billiard/process.py b/billiard/process.py
index 5082343..5356cc4 100644
--- a/billiard/process.py
+++ b/billiard/process.py
@@ -333,7 +333,7 @@ def _bootstrap(self):
                 sys.stderr.write(str(exc.args[0]) + '\n')
                 _maybe_flush(sys.stderr)
                 exitcode = 0 if isinstance(exc.args[0], str) else 1
-        except:
+        except Exception:
             exitcode = 1
             if not util.error('Process %s', self.name, exc_info=True):
                 import traceback
diff --git a/billiard/resource_sharer.py b/billiard/resource_sharer.py
index 243f5e3..722720d 100644
--- a/billiard/resource_sharer.py
+++ b/billiard/resource_sharer.py
@@ -153,7 +153,7 @@ def _serve(self):
                         send(conn, destination_pid)
                     finally:
                         close()
-            except:
+            except Exception:
                 if not util.is_exiting():
                     sys.excepthook(*sys.exc_info())
 
diff --git a/billiard/semaphore_tracker.py b/billiard/semaphore_tracker.py
index 8ba0df4..23246ad 100644
--- a/billiard/semaphore_tracker.py
+++ b/billiard/semaphore_tracker.py
@@ -59,7 +59,7 @@ def ensure_running(self):
                 args = [exe] + util._args_from_interpreter_flags()
                 args += ['-c', cmd % r]
                 spawnv_passfds(exe, args, fds_to_pass)
-            except:
+            except Exception:
                 os.close(w)
                 raise
             else:
@@ -121,7 +121,7 @@ def main(fd):
                 except Exception:
                     try:
                         sys.excepthook(*sys.exc_info())
-                    except:
+                    except Exception:
                         pass
     finally:
         # all processes have terminated; cleanup any remaining semaphores