diff --git a/requirements.txt b/requirements.txt
index d7b4b614..57f1a42e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+pyail
 pymisp
 d4-pyclient
 
diff --git a/update/v3.5/Update.sh b/update/v3.5/Update.sh
index 40a5f9c0..ea0d39c3 100755
--- a/update/v3.5/Update.sh
+++ b/update/v3.5/Update.sh
@@ -22,6 +22,9 @@ wait
 # SUBMODULES #
 git submodule update
 
+echo -e $GREEN"Installing PyAIL ..."$DEFAULT
+pip3 install -U pyail
+
 echo -e $GREEN"Installing D4 CLIENT ..."$DEFAULT
 pip3 install -U d4-pyclient