diff --git a/README.md b/README.md
index 6660277..e0fd268 100644
--- a/README.md
+++ b/README.md
@@ -44,10 +44,10 @@ You can find the latest released binary at the following links:
 
 ### For running from source:
 - Python 3.3+
-- [PyQt5](http://www.riverbankcomputing.co.uk/software/pyqt/download5) 5.2.0+
+- [PyQt](http://www.riverbankcomputing.co.uk/software/pyqt/download5) 5.2.0+
 - [Pillow](http://pypi.python.org/pypi/Pillow/) 2.7.0+
 - [psutil](https://pypi.python.org/pypi/psutil) 2.0+
-- [python-slugify](http://pypi.python.org/pypi/python-slugify)
+- [python-slugify](http://pypi.python.org/pypi/python-slugify) 0.1.0+
 
 On Debian based distributions these two commands should install all dependencies:
 ```
diff --git a/kcc/KCC_gui.py b/kcc/KCC_gui.py
index 2a3780e..1b0c013 100644
--- a/kcc/KCC_gui.py
+++ b/kcc/KCC_gui.py
@@ -37,6 +37,7 @@ from PyQt5 import QtGui, QtCore, QtWidgets, QtNetwork
 from xml.dom.minidom import parse
 from psutil import Popen, Process
 from copy import copy
+from distutils.version import StrictVersion
 from .shared import md5Checksum, HTMLStripper
 from . import comic2ebook
 from . import KCC_rc_web
@@ -244,7 +245,7 @@ class VersionThread(QtCore.QThread):
         except Exception:
             return
         latestVersion = XML.childNodes[0].getElementsByTagName('latest')[0].childNodes[0].toxml()
-        if tuple(map(int, (latestVersion.split(".")))) > tuple(map(int, (__version__.split(".")))):
+        if StrictVersion(latestVersion) > StrictVersion(__version__):
             if sys.platform.startswith('win'):
                 self.newVersion = latestVersion
                 self.md5 = XML.childNodes[0].getElementsByTagName('WindowsMD5')[0].childNodes[0].toxml()
@@ -1045,11 +1046,9 @@ class KCCGUI(KCC_ui.Ui_KCC):
                 line = line.decode("utf-8")
                 if 'Amazon kindlegen' in line:
                     versionCheck = line.split('V')[1].split(' ')[0]
-                    if tuple(map(int, (versionCheck.split(".")))) < tuple(map(int, ('2.9'.split(".")))):
+                    if StrictVersion(versionCheck) < StrictVersion('2.9'):
                         self.addMessage('Your <a href="http://www.amazon.com/gp/feature.html?ie=UTF8&docId='
-                                        '1000765211">KindleGen</a> is outdated! Creating MOBI might fail.'
-                                        ' Please update <a href="http://www.amazon.com/gp/feature.html?ie=UTF8&docId='
-                                        '1000765211">KindleGen</a> from Amazon\'s website.', 'warning')
+                                        '1000765211">KindleGen</a> is outdated! MOBI conversion might fail.', 'warning')
                     break
         else:
             self.KindleGen = False
diff --git a/kcc/shared.py b/kcc/shared.py
index b8c7334..5a6602b 100644
--- a/kcc/shared.py
+++ b/kcc/shared.py
@@ -23,6 +23,7 @@ __docformat__ = 'restructuredtext en'
 import os
 from hashlib import md5
 from html.parser import HTMLParser
+from distutils.version import StrictVersion
 
 
 class HTMLStripper(HTMLParser):
@@ -81,25 +82,27 @@ def dependencyCheck(level):
     missing = []
     if level > 2:
         try:
-            from PyQt5 import QtCore, QtNetwork, QtWidgets
-            if tuple(map(int, ('5.2.0'.split(".")))) > tuple(map(int, (QtCore.qVersion().split(".")))):
-                missing.append('PyQt5 5.2.0+')
+            from PyQt5.QtCore import qVersion as qtVersion
+            if StrictVersion('5.2.0') > StrictVersion(qtVersion()):
+                missing.append('PyQt 5.2.0+')
         except ImportError:
-            missing.append('PyQt5 5.2.0+')
+            missing.append('PyQt 5.2.0+')
     if level > 1:
         try:
-            import psutil
-            if tuple(map(int, ('2.0.0'.split(".")))) > tuple(map(int, psutil.version_info)):
+            from psutil import __version__ as psutilVersion
+            if StrictVersion('2.0.0') > StrictVersion(psutilVersion):
                 missing.append('psutil 2.0.0+')
         except ImportError:
             missing.append('psutil 2.0.0+')
         try:
-            import slugify
+            from slugify import __version__ as slugifyVersion
+            if StrictVersion('0.1.0') > StrictVersion(slugifyVersion):
+                missing.append('python-slugify 0.1.0+')
         except ImportError:
-            missing.append('python-slugify')
+            missing.append('python-slugify 0.1.0+')
     try:
-        import PIL
-        if tuple(map(int, ('2.7.0'.split(".")))) > tuple(map(int, (PIL.PILLOW_VERSION.split(".")))):
+        from PIL import PILLOW_VERSION as pillowVersion
+        if StrictVersion('2.7.0') > StrictVersion(pillowVersion):
             missing.append('Pillow 2.7.0+')
     except ImportError:
         missing.append('Pillow 2.7.0+')