diff --git a/requirements.txt b/requirements.txt
index adf02f1..45adfbe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,6 +15,6 @@ idna==2.8                 # via yarl
 multidict==4.5.2          # via aiohttp, yarl
 pycares==3.0.0            # via aiodns
 pycparser==2.19           # via cffi
-pyyaml==5.1.2
+pyyaml==5.4
 uvloop==0.13.0
 yarl==1.3.0               # via aiohttp