diff --git a/src/freedombone-app-tahoelafs b/src/freedombone-app-tahoelafs
index 4e93bcff..9ae3261e 100755
--- a/src/freedombone-app-tahoelafs
+++ b/src/freedombone-app-tahoelafs
@@ -222,7 +222,8 @@ function install_tahoelafs {
     git checkout $TAHOELAFS_COMMIT -b $TAHOELAFS_COMMIT
     git submodule update --init --recursive
     virtualenv venv
-    venv/bin/pip install six packaging appdirs pycrypto==2.1.0
+    venv/bin/pip install six==1.10.0 packaging==16.8 attrs=16.3.0 appdirs pycrypto==2.1.0 cffi==1.9.1
+    venv/bin/pip install cryptography==1.7.2 setuptools==11.3
     venv/bin/pip install --editable .
     configure_firewall_for_tahoelafs