diff --git a/distributed-crawler/api/requirements.txt b/distributed-crawler/api/requirements.txt
index 77f326c..d6e1da0 100644
--- a/distributed-crawler/api/requirements.txt
+++ b/distributed-crawler/api/requirements.txt
@@ -9,7 +9,7 @@ elasticsearch==6.3.1
 idna==2.8
 multidict==4.5.2
 pamqp==2.3.0
-PyYAML==5.1.1
+PyYAML==5.4
 urllib3==1.25.1
 yarl==1.3.0
 -e git+https://github.com/oleggator/python-advanced.git#egg=asyncorm&subdirectory=asyncorm
diff --git a/distributed-crawler/auth/requirements.txt b/distributed-crawler/auth/requirements.txt
index 77f326c..d6e1da0 100644
--- a/distributed-crawler/auth/requirements.txt
+++ b/distributed-crawler/auth/requirements.txt
@@ -9,7 +9,7 @@ elasticsearch==6.3.1
 idna==2.8
 multidict==4.5.2
 pamqp==2.3.0
-PyYAML==5.1.1
+PyYAML==5.4
 urllib3==1.25.1
 yarl==1.3.0
 -e git+https://github.com/oleggator/python-advanced.git#egg=asyncorm&subdirectory=asyncorm
diff --git a/distributed-crawler/requirements.txt b/distributed-crawler/requirements.txt
index cedc555..6e6df3e 100644
--- a/distributed-crawler/requirements.txt
+++ b/distributed-crawler/requirements.txt
@@ -11,6 +11,6 @@ html2text==2018.1.9
 idna==2.8
 multidict==4.5.2
 pamqp==2.3.0
-PyYAML==5.1.1
+PyYAML==5.4
 urllib3==1.25.3
 yarl==1.3.0