diff --git a/sco_version.py b/sco_version.py
index 2430c9679..eab57f78e 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.0.64"
+SCOVERSION = "9.0.65"
 
 SCONAME = "ScoDoc"
 
diff --git a/tools/upgrade.sh b/tools/upgrade.sh
index 02db2b127..7a7d9b462 100755
--- a/tools/upgrade.sh
+++ b/tools/upgrade.sh
@@ -25,6 +25,10 @@ check_uid_root "$0"
 if [ -z "$SCODOC_UPGRADE_RUNNING" ]
    then
        apt-get update && apt-get -y dist-upgrade
+       # install spécifiquement scodoc9, utile si les dépendances Debian de scodoc9
+       # ont été changées, ce qui peut provoquer un
+       # "packages have been kept back"
+       apt install scodoc9
 fi
 systemctl restart redis
 systemctl restart nginx