diff --git a/requirements.txt b/requirements.txt
index 794e269..46da8a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 ecdsa>=0.9
 protobuf>=2.6.1
 mnemonic>=0.17
-hidapi>=0.7.99
+hidapi>=0.7.99.post20
diff --git a/setup.py b/setup.py
index 5621452..05a7194 100755
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ import sys
 if '--disable-hidapi' in sys.argv:
     sys.argv.remove('--disable-hidapi')
 else:
-    install_requires.append('hidapi>=0.7.99')
+    install_requires.append('hidapi>=0.7.99.post20')
 
 setup(
     name='trezor',