diff --git a/setup.py b/setup.py
index 4ecd9f1..f97e8c8 100644
--- a/setup.py
+++ b/setup.py
@@ -19,20 +19,18 @@
     download_url='http://github.com/pzinemanas/DCASE-models/releases',
     packages=setuptools.find_packages(),
     install_requires=[
-        'numpy==1.17.4',
-        'pandas==0.25.3',
-        'SoundFile==0.10.3.post1',
-        'PyYAML==5.2',
-        'numba==0.48.0',
-        'librosa==0.7.1',
+        'numpy>=1.1',
+        'pandas>=0.25',
+        'SoundFile>=0.1',
+        'PyYAML>=5.0',
+        'librosa>=0.7',
         'openl3==0.3.1',
-        'scikit-learn==0.22.1',
-        'keras==2.2.4',
-       # 'tensorflow-gpu==1.12.0',
+        'scikit-learn>=0.20',
+        'keras<=2.3.1',
         'autopool==0.1.0',
-        'wget==3.2',
-        'sox==1.3.7',
-        'sed_eval==0.2.1',
+        'wget>=3.0',
+        'sox>=1.3',
+        'sed_eval>=0.2',
     ],
     extras_require={
         'docs': ['numpydoc', 'sphinx!=1.3.1', 'sphinx_rtd_theme'],