diff --git a/requirements.txt b/requirements.txt
index 53f6a29fb..336faaf4f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # These are known good versions. You're free to use others and things will
 # likely work, but no promises are made, especilly if you go older.
-PyYaml==3.12
-boto3==1.4.4
+PyYaml==4.2b1
+boto3==1.4.5
 botocore==1.5.4
 dnspython==1.15.0
 docutils==0.13.1
@@ -11,6 +11,6 @@ incf.countryutils==1.0
 ipaddress==1.0.18
 jmespath==0.9.0
 python-dateutil==2.6.0
-requests==2.13.0
+requests==2.20
 s3transfer==0.1.10
 six==1.10.0