diff --git a/Dockerfile b/Dockerfile
index 00fe2e20..80617e9b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,6 +9,7 @@ MAINTAINER Pierre-Olivier Mercier <nemunaire@nemunai.re>
 
 RUN apt-get -y update && \
     apt-get install -y \
+    	    realpath \
             nginx-light \
             php5-fpm \
 	    mysql-server \
@@ -16,6 +17,7 @@ RUN apt-get -y update && \
 	    php5-mcrypt \
 	    libmcrypt-dev \
 	    libwww-perl \
+	    libdigest-whirlpool-perl \
 	    pwgen \
 	    openssl \
     && \
diff --git a/README.md b/README.md
index 821cd00b..d8afcc29 100644
--- a/README.md
+++ b/README.md
@@ -76,12 +76,14 @@ CONNTRACK states.
 
 ##### Requirements
 
+* `realpath`;
 * `mysql`;
 * `nginx` with `fastcgi` module;
 * `php-fpm` with `mysql` module;
 * `openssl` and `pwgen` for client certificat generation;
 * `mcrypt`;
-* `HTTP::Request::Common` perl module;
+* `HTTP::Request::Common` perl module (provided by `libwww-perl`);
+* `Digest::Whirlpool` perl module (provided by `lib-digest-whirlpool-perl`);
 * `Mcrypt` from CPAN (`cpan -i Mcrypt`, on Debian, it requires `libtool` and
   `build-essential`) to decrypt submissions (see
   https://metacpan.org/pod/Mcrypt);
diff --git a/TODO b/TODO
index a9e699d5..667bda0b 100644
--- a/TODO
+++ b/TODO
@@ -7,3 +7,4 @@
 - Mettre à jour les logos
 - versionner la DTD et la doc associée
 - valider les documents avec la DTD à l'import
+- Lors de l'import des XML, retirer l'éventuel / en début de path