diff --git a/pymisp/api.py b/pymisp/api.py
index ecbd62d..8f898d5 100644
--- a/pymisp/api.py
+++ b/pymisp/api.py
@@ -18,7 +18,7 @@ try:
     from urllib.parse import urljoin
 except ImportError:
     from urlparse import urljoin
-    warnings.warn("You're using python 2, it is strongly recommended to use python >=3.4")
+    warnings.warn("You're using python 2, it is strongly recommended to use python >=3.5")
 from io import BytesIO, open
 import zipfile
 
diff --git a/pymisp/mispevent.py b/pymisp/mispevent.py
index 2bbbe3f..61c3b27 100644
--- a/pymisp/mispevent.py
+++ b/pymisp/mispevent.py
@@ -43,7 +43,7 @@ from .exceptions import PyMISPError, NewEventError, NewAttributeError
 try:
     basestring
     unicode
-    warnings.warn("You're using python 2, it is strongly recommended to use python >=3.4")
+    warnings.warn("You're using python 2, it is strongly recommended to use python >=3.5")
 except NameError:
     basestring = str
     unicode = str
diff --git a/pymisp/tools/objectgenerator.py b/pymisp/tools/objectgenerator.py
index 970c877..72b5ba0 100644
--- a/pymisp/tools/objectgenerator.py
+++ b/pymisp/tools/objectgenerator.py
@@ -21,7 +21,7 @@ class InvalidMISPObject(MISPObjectException):
 
 if six.PY2:
     import warnings
-    warnings.warn("You're using python 2, it is strongly recommended to use python >=3.4")
+    warnings.warn("You're using python 2, it is strongly recommended to use python >=3.5")
 
 
 class MISPObjectReference(AbstractMISP):
@@ -80,7 +80,14 @@ class MISPObjectGenerator(AbstractMISP):
             if attribute.value is None:
                 continue
             # Finalize the actual MISP Object
-            new_object['Attribute'].append({'object_relation': object_type, **attribute._json()})
+            # FIXME: This only works on python >= 3.5
+            # new_object['Attribute'].append({'object_relation': object_type, **attribute._json()})
+            # ### BEGIN ####
+            # Because we still need to support old python.
+            temp_attribute = {'object_relation': object_type}
+            temp_attribute.update(attribute._json())
+            new_object['Attribute'].append(temp_attribute)
+            # ###  END  ####
         return new_object, [r.to_dict() for r in self.references]
 
     def _validate(self):