diff --git a/install.sh b/install.sh
index 2212164..322c7bc 100755
--- a/install.sh
+++ b/install.sh
@@ -66,8 +66,10 @@ echo "###########################"
 echo 'export PATH=$PATH:$HOME/.local/bin' >> ~/.bashrc && source ~/.bashrc; echo ">>> PATH=$PATH"
 python3 -m pip install -U pip
 python3 -m pip install -U setuptools wheel
-python3 -m pip install -U cryptography Ed25519 base58 google protobuf duniterpy pynacl pgpy
+python3 -m pip install -U cryptography Ed25519 base58 google duniterpy pynacl pgpy
 python3 -m pip install -U nicotine-plus silkaj
+python3 -m pip install -U protobuf==3.19.0
+
 
 if [[ "$USER" == "pi" ]]; then ## PROPOSE QR_CODE PRINTER SUR RPI
     echo "Ambassade? Souhaitez vous ajouter imprimante 'brother_ql'? Saisissez OUI, sinon laissez vide et tapez sur ENTRER"