diff --git a/setup.py b/setup.py
index eb1d66b..01dd309 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ setup(
     description="",
     install_requires=[
         "aiohttp",
-        "PyNaCl~=1.4.0",
+        "PyNaCl~=1.5.0",
     ],
     extras_require={
         "full": [