fixing versions of pyaml, aiohttp, jinja2

Change-Id: I5eca0738f06037800091bbfed6292a3617b67ac0
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/setup.py b/setup.py
index 44b011b..c0ee55c 100644
--- a/setup.py
+++ b/setup.py
@@ -47,11 +47,11 @@
     #             ],
     install_requires=[
         # 'pymongo',
-        'PyYAML',
-        'aiohttp>=2.3.10',
+        'PyYAML==5.*',
+        'aiohttp==3.*',
         'osm-common @ git+https://osm.etsi.org/gerrit/osm/common.git@v8.0#egg=osm-common',
         'n2vc @ git+https://osm.etsi.org/gerrit/osm/N2VC.git@v8.0#egg=n2vc',
-        'jinja2',
+        'jinja2==2.10',
         'grpcio-tools==1.32.0',
         'grpclib==0.4.1',
     ],