diff --git a/requirements.txt b/requirements.txt
index 98652cb..7af3c5f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ pytest-mpl==0.11
 python-dateutil==2.8.1
 pytz==2019.3
 pywavelets==1.1.1
-pyyaml==3.13
+pyyaml==5.1
 ratelimiter==1.2.0.post0
 requests-oauthlib==1.2.0
 rsa==4.0