diff --git a/requirements_dev.txt b/requirements_dev.txt
index 15cff35..a6e43da 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -12,5 +12,5 @@ sphinx-rtd-theme==0.5.0
 wheel==0.34.2
 watchdog==0.10.3
 bumpversion==0.6.0
-pyyaml==5.3.1
+pyyaml==5.4
 argh==0.26.2
\ No newline at end of file