diff --git a/jsignature/widgets.py b/jsignature/widgets.py
index bdbf148..dc1d65f 100644
--- a/jsignature/widgets.py
+++ b/jsignature/widgets.py
@@ -11,7 +11,7 @@
 from django.core.exceptions import ValidationError
 
 from django.utils.safestring import mark_safe
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from jsignature.settings import JSIGNATURE_DEFAULT_CONFIG
 
 JSIGNATURE_EMPTY_VALUES = validators.EMPTY_VALUES + ('[]', )
diff --git a/setup.py b/setup.py
index 07def41..fb16461 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
     long_description=open(os.path.join(here, 'README.rst')).read() + '\n\n' +
         open(os.path.join(here, 'CHANGES')).read(),
     license='LPGL, see LICENSE file.',
-    install_requires=['Django>=1.11', 'pillow'],
+    install_requires=['Django>=1.11', 'pillow', 'pyquery>=1.4.2'],
     packages=find_packages(exclude=['example_project*', 'tests']),
     include_package_data=True,
     zip_safe=False,
diff --git a/tests/test_fields.py b/tests/test_fields.py
index fb438c3..e36f9de 100644
--- a/tests/test_fields.py
+++ b/tests/test_fields.py
@@ -24,13 +24,13 @@ def test_to_python_empty(self):
     def test_to_python_correct_value_python(self):
         f = JSignatureField()
         val = [{"x": [1, 2], "y": [3, 4]}]
-        self.assertEquals(val, f.to_python(val))
+        self.assertEqual(val, f.to_python(val))
 
     def test_to_python_correct_value_json(self):
         f = JSignatureField()
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_str = '[{"x":[1,2], "y":[3,4]}]'
-        self.assertEquals(val, f.to_python(val_str))
+        self.assertEqual(val, f.to_python(val_str))
 
     def test_to_python_incorrect_value(self):
         f = JSignatureField()
@@ -47,7 +47,7 @@ def test_get_prep_value_correct_values_python(self):
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_prep = f.get_prep_value(val)
         self.assertIsInstance(val_prep, string_types)
-        self.assertEquals(val, json.loads(val_prep))
+        self.assertEqual(val, json.loads(val_prep))
 
     def test_get_prep_value_correct_values_json(self):
         f = JSignatureField()
@@ -55,7 +55,7 @@ def test_get_prep_value_correct_values_json(self):
         val_str = '[{"x":[1,2], "y":[3,4]}]'
         val_prep = f.get_prep_value(val_str)
         self.assertIsInstance(val_prep, string_types)
-        self.assertEquals(val, json.loads(val_prep))
+        self.assertEqual(val, json.loads(val_prep))
 
     def test_get_prep_value_incorrect_values(self):
         f = JSignatureField()
diff --git a/tests/test_forms.py b/tests/test_forms.py
index 56c9b26..96a1c93 100644
--- a/tests/test_forms.py
+++ b/tests/test_forms.py
@@ -19,7 +19,7 @@ def test_to_python_empty_values(self):
     def test_to_python_correct_values(self):
         f = JSignatureField()
         val = '[{"x":[1,2], "y":[3,4]}]'
-        self.assertEquals([{'x': [1, 2], 'y': [3, 4]}], f.to_python(val))
+        self.assertEqual([{'x': [1, 2], 'y': [3, 4]}], f.to_python(val))
 
     def test_to_python_incorrect_values(self):
         f = JSignatureField()
diff --git a/tests/test_widgets.py b/tests/test_widgets.py
index a59ed68..8da5be7 100644
--- a/tests/test_widgets.py
+++ b/tests/test_widgets.py
@@ -25,7 +25,7 @@ def test_default_media(self):
         self.assertIn('jSignature.min.js', media_js_str)
         self.assertIn('django_jsignature.js', media_js_str)
         media_css = list(media.render_css())
-        self.assertEquals([], media_css)
+        self.assertEqual([], media_css)
 
     @override_settings(JSIGNATURE_JQUERY='admin')
     def test_media_in_admin(self):
@@ -43,10 +43,10 @@ def test_media_custom_jquery(self):
 
     def test_init(self):
         w = JSignatureWidget()
-        self.assertEquals({}, w.jsignature_attrs)
+        self.assertEqual({}, w.jsignature_attrs)
         given_attrs = {'width': 300, 'height': 100}
         w = JSignatureWidget(jsignature_attrs=given_attrs)
-        self.assertEquals(given_attrs, w.jsignature_attrs)
+        self.assertEqual(given_attrs, w.jsignature_attrs)
 
     def test_build_jsignature_id(self):
         w = JSignatureWidget()
@@ -69,7 +69,7 @@ def test_prep_value_correct_values_python(self):
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_prep = w.prep_value(val)
         self.assertIsInstance(val_prep, string_types)
-        self.assertEquals(val, json.loads(val_prep))
+        self.assertEqual(val, json.loads(val_prep))
 
     def test_prep_value_correct_values_json(self):
         w = JSignatureWidget()
@@ -77,7 +77,7 @@ def test_prep_value_correct_values_json(self):
         val_str = '[{"x":[1,2], "y":[3,4]}]'
         val_prep = w.prep_value(val_str)
         self.assertIsInstance(val_prep, string_types)
-        self.assertEquals(val, json.loads(val_prep))
+        self.assertEqual(val, json.loads(val_prep))
 
     def test_prep_value_incorrect_values(self):
         w = JSignatureWidget()