diff --git a/debian/python3-osm-common.postinst b/debian/python3-osm-common.postinst
index 658ef23..30e749c 100755
--- a/debian/python3-osm-common.postinst
+++ b/debian/python3-osm-common.postinst
@@ -24,7 +24,7 @@
 pip3 install --upgrade aiokafka==0.4.*
 pip3 install --upgrade pymongo==3.7.*
 pip3 install --upgrade pyyaml==3.*
-# pip3 install pycrypto   added as dependency: python3-crypto
+pip3 install pycrypto   # added dependency python3-crypto seems not working
 
 #Creation of log folder
 mkdir -p /var/log/osm