Upgrading PyYaml due to new juju package

Change-Id: Idce6235e9bdd033d16d207734c9e1ddd0ed0453b
Signed-off-by: lavado <glavado@whitestack.com>
diff --git a/debian/python3-osm-mon.postinst b/debian/python3-osm-mon.postinst
index f41b674..ff08172 100644
--- a/debian/python3-osm-mon.postinst
+++ b/debian/python3-osm-mon.postinst
@@ -28,7 +28,7 @@
 pip3 install python-keystoneclient==3.15.*
 pip3 install six==1.11.*
 pip3 install peewee==3.8.*
-pip3 install pyyaml==3.*
+pip3 install pyyaml>=5.1.2
 pip3 install prometheus_client==0.4.*
 pip3 install gnocchiclient==7.0.*
 pip3 install pyvcloud==19.1.1
diff --git a/requirements.txt b/requirements.txt
index 6215643..29ee06a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@
 python-keystoneclient==3.15.*
 six==1.11.*
 peewee==3.8.*
-pyyaml==3.*
+pyyaml>=5.1.2
 prometheus_client==0.4.*
 gnocchiclient==7.0.*
 pymysql==0.9.*
diff --git a/setup.py b/setup.py
index 032ee87..1cee33f 100644
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@
         "python-keystoneclient==3.15.*",
         "six==1.11.*",
         "peewee==3.8.*",
-        "pyyaml==3.*",
+        "pyyaml>=5.1.2",
         "prometheus_client==0.4.*",
         "gnocchiclient==7.0.*",
         "pyvcloud==19.1.1",