diff --git a/requirements.txt b/requirements.txt
index ac387bc..c34c42d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 -i https://pypi.org/simple
 aenum==2.2.3
 gitdb==4.0.5
-gitpython==3.1.3
+gitpython==3.1.27
 gremlinpython==3.4.7
 isodate==0.6.0
 marshmallow==3.6.1
@@ -9,7 +9,7 @@ mlspeclib==0.0.25
 msgpack==1.0.0
 pymysql==0.9.3
 python-box==5.0.0a0
-pyyaml==5.3.1
+pyyaml==5.4
 semver==2.10.1
 six==1.15.0
 smmap==3.0.4