fixup smpp.twisted

Change-Id: I44634f35e540625ee669a0ac15a5e249711f6b52
diff --git a/requirements.txt b/requirements.txt
index 4332b66..afb2f59 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,3 +12,4 @@
 pycryptodomex
 packaging
 git+https://github.com/hologram-io/smpp.pdu
+git+https://github.com/jookies/smpp.twisted
diff --git a/setup.py b/setup.py
index 5678c55..b112dc6 100644
--- a/setup.py
+++ b/setup.py
@@ -23,6 +23,7 @@
         "pycryptodomex",
         "packaging",
         "smpp.pdu @ git+https://github.com/hologram-io/smpp.pdu",
+        "smpp.twisted @ git+https://github.com/jookies/smpp.twisted",
     ],
     scripts=[
         'pySim-prog.py',