diff --git a/.github/workflows/build_packages.yml b/.github/workflows/build_packages.yml
index d9aecd3..c758776 100644
--- a/.github/workflows/build_packages.yml
+++ b/.github/workflows/build_packages.yml
@@ -40,7 +40,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
       - name: Install dependencies
-        run: sudo apt install -y debhelper dh-virtualenv python3 python3-virtualenv python3-pip python3-setuptools python3-pyqt5 swig qttools5-dev-tools qtchooser
+        run: sudo apt install -y debhelper dh-virtualenv python3 python3-cryptography python3-asn1crypto python3-virtualenv python3-pip python3-setuptools python3-pyqt5 swig qttools5-dev-tools qtchooser
       - name: Execute build
         run: cd installer/debian/ && ./build.sh
       - name: Get artifact
diff --git a/installer/debian/debian/control b/installer/debian/debian/control
index b358371..fbc0aa0 100644
--- a/installer/debian/debian/control
+++ b/installer/debian/debian/control
@@ -2,12 +2,12 @@ Source: simple-signer
 Section: python
 Priority: optional
 Maintainer: Georg Sieber <it@georg-sieber.de>
-Build-Depends: debhelper (>= 9), dh-virtualenv (>= 0.8), python3, python3-virtualenv, python3-pip, python3-setuptools, python3-pyqt5, swig, qttools5-dev-tools, qtchooser
+Build-Depends: debhelper (>= 9), dh-virtualenv (>= 0.8), python3, python3-cryptography, python3-asn1crypto, python3-virtualenv, python3-pip, python3-setuptools, python3-pyqt5, swig, qttools5-dev-tools, qtchooser
 Standards-Version: 3.9.5
 
 Package: simple-signer
 Provides: simple-signer
 Architecture: any
 Pre-Depends: dpkg (>= 1.16.1), python3, ${misc:Pre-Depends}
-Depends: python3, python3-venv, python3-virtualenv, python3-pyqt5, ${misc:Depends}
+Depends: python3, python3-cryptography, python3-asn1crypto, python3-venv, python3-virtualenv, python3-pyqt5, ${misc:Depends}
 Description: Sign and certity PDF files using a simple user interface.