diff --git a/click_threading/__init__.py b/click_threading/__init__.py
index 3d022d0..8a2bdfd 100644
--- a/click_threading/__init__.py
+++ b/click_threading/__init__.py
@@ -21,7 +21,7 @@ try:
 except ImportError:
     from futures import Future as _Future
 
-__version__ = '0.4.3'
+__version__ = '0.4.4'
 
 _CTX_WORKER_KEY = __name__ + '.uiworker'
 
diff --git a/click_threading/_compat.py b/click_threading/_compat.py
index 9f1e82d..466ee8a 100644
--- a/click_threading/_compat.py
+++ b/click_threading/_compat.py
@@ -1,12 +1,15 @@
 # -*- coding: utf-8 -*-
 
+import inspect
 import sys
 
 PY2 = sys.version_info[0] == 2
 
 if PY2:
+    getargspec = inspect.getargspec
     exec('def reraise(tp, value, tb=None):\n raise tp, value, tb')
 else:
+    getargspec = inspect.getfullargspec
     def reraise(tp, value, tb=None):
         if value.__traceback__ is not tb:
             raise value.with_traceback(tb)
diff --git a/click_threading/monkey.py b/click_threading/monkey.py
index 4eb2662..1c16cd6 100644
--- a/click_threading/monkey.py
+++ b/click_threading/monkey.py
@@ -4,7 +4,7 @@ import types
 import contextlib
 import inspect
 
-from ._compat import PY2
+from ._compat import PY2, getargspec
 
 
 class FunctionInfo(object):
@@ -40,7 +40,7 @@ def patch_ui_functions(wrapper):
 
         new_f = wrapper(_copy_fn(f), info)
 
-        argspec = inspect.getargspec(f)
+        argspec = getargspec(f)
         signature = inspect.formatargspec(*argspec) \
             .lstrip('(') \
             .rstrip(')')
diff --git a/debian/.git-dpm b/debian/.git-dpm
index 84b4b0f..414b965 100644
--- a/debian/.git-dpm
+++ b/debian/.git-dpm
@@ -1,7 +1,7 @@
 # see git-dpm(1) from git-dpm package
-a6ab771391afe1f9c23349feac29d0682524782d
-a6ab771391afe1f9c23349feac29d0682524782d
-09288b0632585c754fe840aa3b1211dbbfad5118
+97c8c550c212e571b1c1ec8a2feffc620d80aaa6
+97c8c550c212e571b1c1ec8a2feffc620d80aaa6
+2ed2031524cd760cea765e08045ad04aa2bea199
 2ed2031524cd760cea765e08045ad04aa2bea199
 python-click-threading_0.4.4.orig.tar.gz
 5aedcc7165db1a92a8c6b82cca0b5c1a3084b194
diff --git a/debian/patches/0001-Fix-conditional-dependency-on-futures.patch b/debian/patches/0001-Fix-conditional-dependency-on-futures.patch
index 945c23f..7228966 100644
--- a/debian/patches/0001-Fix-conditional-dependency-on-futures.patch
+++ b/debian/patches/0001-Fix-conditional-dependency-on-futures.patch
@@ -1,4 +1,4 @@
-From a6ab771391afe1f9c23349feac29d0682524782d Mon Sep 17 00:00:00 2001
+From 97c8c550c212e571b1c1ec8a2feffc620d80aaa6 Mon Sep 17 00:00:00 2001
 From: Filip Pytloun <filip@pytloun.cz>
 Date: Fri, 12 Aug 2016 11:23:17 +0200
 Subject: Fix conditional dependency on futures