diff --git a/lib/sqlalchemy/util/langhelpers.py b/lib/sqlalchemy/util/langhelpers.py
index 213f3a0..1518d2b 100644
--- a/lib/sqlalchemy/util/langhelpers.py
+++ b/lib/sqlalchemy/util/langhelpers.py
@@ -371,7 +371,9 @@ def format_argspec_plus(fn, grouped=True):
     else:
         # we accept an existing argspec...
         spec = fn
-    args = inspect.formatargspec(*spec)
+    with warnings.catch_warnings():
+        warnings.filterwarnings("ignore", category=DeprecationWarning)
+        args = inspect.formatargspec(*spec)
     if spec[0]:
         self_arg = spec[0][0]
     elif spec[1]:
@@ -380,8 +382,10 @@ def format_argspec_plus(fn, grouped=True):
         self_arg = None
 
     if compat.py3k:
-        apply_pos = inspect.formatargspec(spec[0], spec[1],
-                                          spec[2], None, spec[4])
+        with warnings.catch_warnings():
+            warnings.filterwarnings("ignore", category=DeprecationWarning)
+            apply_pos = inspect.formatargspec(spec[0], spec[1],
+                                              spec[2], None, spec[4])
         num_defaults = 0
         if spec[3]:
             num_defaults += len(spec[3])
@@ -400,9 +404,11 @@ def format_argspec_plus(fn, grouped=True):
     else:
         defaulted_vals = ()
 
-    apply_kw = inspect.formatargspec(name_args, spec[1], spec[2],
-                                     defaulted_vals,
-                                     formatvalue=lambda x: '=' + x)
+    with warnings.catch_warnings():
+        warnings.filterwarnings("ignore", category=DeprecationWarning)
+        apply_kw = inspect.formatargspec(name_args, spec[1], spec[2],
+                                         defaulted_vals,
+                                         formatvalue=lambda x: '=' + x)
     if grouped:
         return dict(args=args, self_arg=self_arg,
                     apply_pos=apply_pos, apply_kw=apply_kw)
@@ -646,8 +652,10 @@ def monkeypatch_proxied_specials(into_cls, from_cls, skip=None, only=None,
             continue
         try:
             spec = compat.inspect_getargspec(fn)
-            fn_args = inspect.formatargspec(spec[0])
-            d_args = inspect.formatargspec(spec[0][1:])
+            with warnings.catch_warnings():
+                warnings.filterwarnings("ignore", category=DeprecationWarning)
+                fn_args = inspect.formatargspec(spec[0])
+                d_args = inspect.formatargspec(spec[0][1:])
         except TypeError:
             fn_args = '(self, *args, **kw)'
             d_args = '(*args, **kw)'