diff --git a/requirements.txt b/requirements.txt
index 948526e..abe815f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,5 +38,5 @@ six==1.12.0
 SQLAlchemy==1.3.1
 teamcity-messages==1.23
 urllib3==1.24.1
-webargs==5.1.3
+webargs==5.5.3
 Werkzeug==0.14.1
\ No newline at end of file