diff --git a/setup.py b/setup.py
index 163144979..0add2c219 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
     sys.exit()
 
 if sys.version_info[:2] == (2, 7) or sys.version_info[:2] <= (3, 5):
-    INSTALL_REQUIRES=['numpy>=1.10,<1.24', 'biopython<=1.76', 'pyparsing', 'scipy', 'mmtf-python]
+    INSTALL_REQUIRES=['numpy>=1.10,<1.24', 'biopython<=1.76', 'pyparsing', 'scipy', 'mmtf-python']
 else:
     INSTALL_REQUIRES=['numpy>=1.10,<1.24', 'biopython<=1.79', 'pyparsing', 'scipy', 'setuptools', 'mmtf-python']