diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 366844ee12..41438469df 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -26,10 +26,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        container: [ "sandervocke/shoopdaloop_build_base_debian_bullseye_x86_64:latest" ]
-        container_options: [ "--user root --workdir /" ]
-        arch: [ x86_64 ]
-        manylinux_arch: [ x86_64 ]
         kind:
           - name: linux_release
             build_type: 'Release'
@@ -48,6 +44,10 @@ jobs:
             build_type: 'Debug'
             cmake_opts: '"ENABLE_COVERAGE" = "On"'
             coverage: true
+        container: [ "sandervocke/shoopdaloop_build_base_debian_bullseye_x86_64:latest" ]
+        container_options: [ "--user root --workdir /" ]
+        arch: [ x86_64 ]
+        manylinux_arch: [ x86_64 ]
     runs-on: ubuntu-latest
     container:
       image: ${{ matrix.container }}
@@ -73,7 +73,6 @@ jobs:
         python: python3.9
         rename_wheel_sed: "'s/([^\\.]+)[\\.]+whl/\\1.whl/g'" # remove double dot
         pyinstaller: ${{ matrix.kind.pyinstaller }}
-        pyinstaller_python: /usr/bin/python3.9 # pyinstaller uses the official AlmaLinux Python because it has shared libs
         package_kind: ${{ matrix.kind.package_kind }}
         coverage: ${{ matrix.kind.coverage }}
     # - name: Setup tmate session
@@ -216,7 +215,6 @@ jobs:
         python: python3.9
         rename_wheel_sed: "'s/([^\\.]+)[\\.]+whl/\\1.whl/g'" # remove double dot
         pyinstaller: ${{ matrix.kind.pyinstaller }}
-        pyinstaller_python: /usr/bin/python3.9 # pyinstaller uses the official AlmaLinux Python because it has shared libs
         package_kind: ${{ matrix.kind.package_kind }}
         coverage: ${{ matrix.kind.coverage }}
   
@@ -316,7 +314,6 @@ jobs:
         python: python3.9
         pyinstaller: ${{ matrix.kind.pyinstaller }}
         appbundle: ${{ matrix.kind.appbundle }}
-        pyinstaller_python: ${{ matrix.kind.pyinstaller_python }}
         package_kind: ${{ matrix.kind.package_kind }}
         coverage: ${{ matrix.kind.coverage }}
         # Note: for some reason, an incorrect MacOS identifier is generated (macos_11 instead of macos_11_0).
@@ -467,7 +464,6 @@ jobs:
         python: ${{ matrix.kind.python }}
         rename_wheel_sed: ${{ matrix.kind.rename_wheel_sed }}
         pyinstaller: ${{ matrix.kind.pyinstaller }}
-        pyinstaller_python: ${{ matrix.kind.pyinstaller_python }}
         package_kind: ${{ matrix.kind.package_kind }}
         coverage: ${{ matrix.kind.coverage }}
 
diff --git a/distribution/dependencies/build_base_debian_bullseye b/distribution/dependencies/build_base_debian_bullseye
index f2a073196a..f901d9ef3f 100644
--- a/distribution/dependencies/build_base_debian_bullseye
+++ b/distribution/dependencies/build_base_debian_bullseye
@@ -8,6 +8,7 @@ cmake/bullseye-backports
 ninja-build
 pkgconf
 lcov
+ruby
 
 # libraries
 libglib2.0-0
diff --git a/distribution/dockerfiles/build_base_debian_bullseye.Dockerfile b/distribution/dockerfiles/build_base_debian_bullseye.Dockerfile
index 3b8685f7ae..601a2136cb 100644
--- a/distribution/dockerfiles/build_base_debian_bullseye.Dockerfile
+++ b/distribution/dockerfiles/build_base_debian_bullseye.Dockerfile
@@ -9,4 +9,5 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get -y install software-properties-common && \
     DEBIAN_FRONTEND=noninteractive apt-add-repository -y "deb http://deb.debian.org/debian bullseye-backports main contrib non-free" && \
     DEBIAN_FRONTEND=noninteractive apt-get update && \
-    DEBIAN_FRONTEND=noninteractive apt-get -y install $(dependencies/get_dependencies.sh build_base_debian_bullseye)
\ No newline at end of file
+    DEBIAN_FRONTEND=noninteractive apt-get -y install $(dependencies/get_dependencies.sh build_base_debian_bullseye) && \
+    gem install fpm
\ No newline at end of file