diff --git a/setup.py b/setup.py
index a26b5352200bb0b85ba071e872d0373bd3940d60..51bc4caaaa36c92dd4dcf25bdc96b5b26c3016d2 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@ setup(name='caretta',
       version='1.0',
       authors=["Janani Durairaj", "Mehmet Akdel"],
       packages=["caretta"],
-      install_requires=["numpy", "numba==0.44.1", "scipy", "prody==1.10.10", "biopython", "fire", "pyparsing"],
+      install_requires=["numpy==1.16.4", "numba==0.44.1", "scipy==1.3.0", "prody==1.10.10", "biopython==1.74", "fire==0.2.1", "pyparsing==2.4.0"],
       extras_require={
           'GUI': ["dash==1.3.1", "dash-bio==0.1.4", "cryptography",
                   "dash-core-components==1.2.1", "dash-html-components==1.0.1", "dash-renderer==1.1.0",