diff --git a/lib/python/mod_python/publisher.py b/lib/python/mod_python/publisher.py
index 75d103f..5882e77 100644
--- a/lib/python/mod_python/publisher.py
+++ b/lib/python/mod_python/publisher.py
@@ -51,8 +51,8 @@ def _callable(obj):
     if PY2:
         return callable(obj)
     else:
-        return (isinstance(obj, collections.Callable) or
-                (hasattr(obj, "__call__") and isinstance(obj.__call__, collections.Callable)))
+        return (isinstance(obj, collections.abc.Callable) or
+                (hasattr(obj, "__call__") and isinstance(obj.__call__, collections.abc.Callable)))
 
 ####################### The published page cache ##############################
 
diff --git a/lib/python/mod_python/util.py b/lib/python/mod_python/util.py
index b1d1d4b..3824318 100644
--- a/lib/python/mod_python/util.py
+++ b/lib/python/mod_python/util.py
@@ -364,12 +364,12 @@ class FieldStorage:
             filename = None
             if b"filename" in disp_options:
                 filename = disp_options[b"filename"]
-                if file_callback and isinstance(file_callback, collections.Callable):
+                if file_callback and isinstance(file_callback, collections.abc.Callable):
                     file = file_callback(filename)
                 else:
                     file = tempfile.TemporaryFile("w+b")
             else:
-                if field_callback and isinstance(field_callback, collections.Callable):
+                if field_callback and isinstance(field_callback, collections.abc.Callable):
                     file = field_callback()
                 else:
                     file = BytesIO()