diff --git a/setup.py b/setup.py
index 927d701..b24c0d7 100644
--- a/setup.py
+++ b/setup.py
@@ -18,10 +18,9 @@
       ],
       py_modules=['tap_mysql'],
       install_requires=[
-          'attrs==16.3.0',
           'pendulum==1.2.0',
           'pipelinewise-singer-python==1.*',
-          'PyMySQL==0.7.11',
+          'PyMySQL==0.9.3',
           'mysql-replication==0.21',
           'pyyaml==5.3',
       ],