diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f72c4d2..040a2bf 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -33,6 +33,7 @@ codestyle:
 build_docker:
   stage: build
   script:
+  - apt update && apt install --yes docker.io
   - docker build -t "registry.gitlab.com/s3lph/easywks:$CI_COMMIT_SHA" -f package/docker/Dockerfile .
   - docker tag "registry.gitlab.com/s3lph/easywks:$CI_COMMIT_SHA" "registry.gitlab.com/s3lph/easywks:$CI_COMMIT_REF_NAME"
   - if [[ -n "$CI_COMMIT_TAG" ]]; then docker tag "registry.gitlab.com/s3lph/easywks:$CI_COMMIT_SHA" "registry.gitlab.com/s3lph/easywks:$CI_COMMIT_TAG"; fi
@@ -60,7 +61,7 @@ build_wheel:
 build_debian:
   stage: build
   script:
-  - apt update && apt install lintian
+  - apt update && apt install --yes lintian rsync sudo
   - echo -n > package/debian/easywks/usr/share/doc/easywks/changelog
   - |
     for version in "$(cat CHANGELOG.md | grep '<!-- BEGIN CHANGES' | cut -d ' ' -f 4)"; do
@@ -78,7 +79,7 @@ build_debian:
   - find easywks/usr/lib/python3/dist-packages -name __pycache__ -exec rm -r {} \; 2>/dev/null || true
   - find easywks/usr/lib/python3/dist-packages -name '*.pyc' -exec rm {} \;
   - find easywks/usr/lib/python3/dist-packages -name '*.pyo' -exec rm {} \;
-  - sed -re 's$#!/usr/local/bin/python3.9$#!/usr/bin/python3$' -i easywks/usr/bin/easywks
+  - sed -re 's$#!/usr/local/bin/python3$#!/usr/bin/python3$' -i easywks/usr/bin/easywks
   - find easywks -type f -exec chmod 0644 {} \;
   - find easywks -type d -exec chmod 755 {} \;
   - chmod +x easywks/usr/bin/easywks easywks/DEBIAN/postinst easywks/DEBIAN/prerm easywks/DEBIAN/postrm
diff --git a/package/debian/easywks/DEBIAN/control b/package/debian/easywks/DEBIAN/control
index 87da654..d19a80c 100644
--- a/package/debian/easywks/DEBIAN/control
+++ b/package/debian/easywks/DEBIAN/control
@@ -8,4 +8,4 @@ Depends: python3 (>= 3.6), python3-pgpy, python3-bottle, python3-yaml, python3-a
 Description: OpenPGP WKS for Human Beings
  EasyWKS is a drop-in replacement for gpg-wks-server that aims to be
  much easyier to use manually, while maintaing compatibility with the
- WKS standard.
\ No newline at end of file
+ WKS standard.
diff --git a/package/debian/easywks/usr/lib/matemat/matemat.conf b/package/debian/easywks/usr/lib/matemat/matemat.conf
deleted file mode 100644
index 5c34f56..0000000
--- a/package/debian/easywks/usr/lib/matemat/matemat.conf
+++ /dev/null
@@ -1,11 +0,0 @@
-[Matemat]
-
-StaticPath=/usr/lib/matemat/static
-TemplatePath=/usr/lib/matemat/templates
-
-LogTarget=stdout
-
-[Pagelets]
-
-UploadDir=/var/lib/matemat/upload
-DatabaseFile=/var/lib/matemat/matemat.db
diff --git a/package/debian/easywks/usr/share/doc/matemat/copyright b/package/debian/easywks/usr/share/doc/easywks/copyright
similarity index 97%
rename from package/debian/easywks/usr/share/doc/matemat/copyright
rename to package/debian/easywks/usr/share/doc/easywks/copyright
index a38a9a5..d0270c8 100644
--- a/package/debian/easywks/usr/share/doc/matemat/copyright
+++ b/package/debian/easywks/usr/share/doc/easywks/copyright
@@ -1,4 +1,4 @@
-Copyright 2018 s3lph
+Copyright 2021 s3lph
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
 associated documentation files (the "Software"), to deal in the Software without restriction,