diff --git a/conf/paperless.conf.example b/conf/paperless.conf.example
index 1220152..4a0de65 100644
--- a/conf/paperless.conf.example
+++ b/conf/paperless.conf.example
@@ -25,6 +25,7 @@ PAPERLESS_DATA_DIR=__DATADIR__/data
 PAPERLESS_MEDIA_ROOT=__DATADIR__/media
 #PAPERLESS_STATICDIR=../static
 #PAPERLESS_FILENAME_FORMAT=
+PAPERLESS_NLTK_DIR=__FINALPATH_/nltk_data
 
 # Security and hosting
 
diff --git a/scripts/install b/scripts/install
index f9c9882..604d0b8 100755
--- a/scripts/install
+++ b/scripts/install
@@ -128,6 +128,14 @@ pushd $final_path
 	source "$final_path/venv/bin/activate"
 	ynh_exec_as $app $final_path/venv/bin/pip3 install --upgrade pip setuptools wheel
 	ynh_exec_as $app $final_path/venv/bin/pip3 install -r "$final_path/requirements.txt"
+
+	# Installing NLTK data
+	mkdir -p "$final_path/nltk_data"
+	chown -R "$app:" "$final_path/nltk_data"
+	ynh_exec_warn_less ynh_exec_as $app $final_path/venv/bin/python3 -m nltk.downloader -d "$final_path/nltk_data" snowball_data
+	ynh_exec_warn_less ynh_exec_as $app $final_path/venv/bin/python3 -m nltk.downloader -d "$final_path/nltk_data" stopwords
+	ynh_exec_warn_less ynh_exec_as $app $final_path/venv/bin/python3 -m nltk.downloader -d "$final_path/nltk_data" punkt
+
 	deactivate
 )
 popd
diff --git a/scripts/restore b/scripts/restore
index a6933ea..9576832 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -38,6 +38,7 @@ db_user=$db_name
 db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
 datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 paperless_secret_key=$(ynh_app_setting_get --app=$app --key=paperless_secret_key)
+ocr_language=$(ynh_app_setting_get --app=$app --key=ocr_language)
 
 redis_db=$(ynh_redis_get_free_db)
 ynh_app_setting_set --app=$app --key=redis_db --value=$redis_db
diff --git a/scripts/upgrade b/scripts/upgrade
index e40ff2a..7db5401 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -124,6 +124,15 @@ pushd $final_path
 	source "$final_path/venv/bin/activate"
 	ynh_exec_as $app $final_path/venv/bin/pip3 install --upgrade pip setuptools wheel
 	ynh_exec_as $app $final_path/venv/bin/pip3 install -r "$final_path/requirements.txt"
+
+	# Installing NLTK data
+	ynh_secure_remove --file="$final_path/nltk_data"
+	mkdir -p "$final_path/nltk_data"
+	chown -R "$app:" "$final_path/nltk_data"
+	ynh_exec_warn_less ynh_exec_as $app $final_path/venv/bin/python3 -m nltk.downloader -d "$final_path/nltk_data" snowball_data
+	ynh_exec_warn_less ynh_exec_as $app $final_path/venv/bin/python3 -m nltk.downloader -d "$final_path/nltk_data" stopwords
+	ynh_exec_warn_less ynh_exec_as $app $final_path/venv/bin/python3 -m nltk.downloader -d "$final_path/nltk_data" punkt
+
 	deactivate
 )
 popd