diff --git a/pica-mail/pica-mail-mta/Dockerfile b/pica-mail/pica-mail-mta/Dockerfile
index c8dc9f1c0640f59c41d5d4904d9e8d5d971c4cdd..a8404ede6f3b4cfdeb349a11dcdf2fdd69072331 100644
--- a/pica-mail/pica-mail-mta/Dockerfile
+++ b/pica-mail/pica-mail-mta/Dockerfile
@@ -8,7 +8,7 @@ ENV DEBIAN_FRONTEND noninteractive
 #installation des paquets debian
 RUN apt-get update -y \
   && apt-get install -y \
-      postfix postfix-ldap libsasl2-modules sasl2-bin opendkim opendkim-tools rsyslog opendmarc ca-certificates \
+      postfix postfix-ldap libsasl2-modules sasl2-bin opendkim opendkim-tools rsyslog opendmarc ca-certificates procps \
   && rm -rf /var/lib/apt/lists/*