diff --git a/README.md b/README.md
index fb78dd0..81b60aa 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 ## What does this do?
 
-Vagrant pulls an Ubuntu 20.04 "base box" and asks e.g. VirtualBox to start a virtual machine.
+Vagrant pulls an Ubuntu 22.04 "base box" and asks e.g. VirtualBox to start a virtual machine.
 It then installs basic tools (such as a desktop environment), a preCICE release,
 several solvers and adapters, as well as example and tutorial files.
 
diff --git a/Vagrantfile b/Vagrantfile
index 275e6cd..a88cbda 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -4,7 +4,7 @@
 Vagrant.configure("2") do |config|
   # The generic/ images support virtualbox as well as libvirt and hyperv.
   # This allows us to create performance oriented images for Linux (libvirt) and Windows (hyperv).
-  config.vm.box = "generic/ubuntu2004"
+  config.vm.box = "generic/ubuntu2204"
 
   # We don't want the box to automatically update every time it starts.
   # We can instead handle updates internally, without destroying the machine.
diff --git a/provisioning/install-basics.sh b/provisioning/install-basics.sh
index 281d54c..c7005dc 100644
--- a/provisioning/install-basics.sh
+++ b/provisioning/install-basics.sh
@@ -18,7 +18,7 @@ sudo apt-get install -y thunar xfce4-terminal terminator bash-completion tree ev
 # echo "autologin-user=vagrant" | sudo tee --append /usr/share/lightdm/lightdm.conf.d/60-xubuntu.conf
 
 # Install the VirtualBox guest additions
-sudo apt-get install -y virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11
+sudo apt-get install -y virtualbox-dkms virtualbox-guest-utils virtualbox-guest-x11
 
 # Create Desktop
 mkdir -p ~/Desktop
diff --git a/provisioning/install-calculix.sh b/provisioning/install-calculix.sh
index 27a6204..51b6a1e 100644
--- a/provisioning/install-calculix.sh
+++ b/provisioning/install-calculix.sh
@@ -16,7 +16,7 @@ fi
 (
     cd calculix-adapter
     git pull
-    make -j "$(nproc)"
+    make -j "$(nproc)" ADDITIONAL_FFLAGS="-fallow-argument-mismatch" # Since GCC 10
 )
 
 # Add the CalculiX adapter to PATH
diff --git a/provisioning/install-dealii.sh b/provisioning/install-dealii.sh
index c0efc13..f57a521 100644
--- a/provisioning/install-dealii.sh
+++ b/provisioning/install-dealii.sh
@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
 set -ex
 
-# Install deal.II from the deal.II 9.3.0 backports PPA
-sudo add-apt-repository ppa:ginggs/deal.ii-9.3.0-backports
+# Install deal.II from the Ubuntu repositories.
+# If the intended version is not available, see also the backports repository on the deal.II website.
 sudo apt-get update
 sudo apt-get install -y libdeal.ii-dev
 
diff --git a/provisioning/install-precice.sh b/provisioning/install-precice.sh
index af4c0ed..9648a00 100644
--- a/provisioning/install-precice.sh
+++ b/provisioning/install-precice.sh
@@ -5,10 +5,10 @@ set -ex
 sudo apt-get install -y cmake libeigen3-dev libxml2-dev libboost-all-dev petsc-dev python3-dev python3-numpy
 
 # Get preCICE from GitHub:
-# - Always get the latest master, no need for versioning
+# - Always get the latest main, no need for versioning
 # - Build in Debug mode, so that users can report bugs
 if [ ! -d "precice/" ]; then
-    git clone --depth=1 --branch master https://github.com/precice/precice.git
+    git clone --depth=1 --branch main https://github.com/precice/precice.git
 fi
 (
     cd precice
diff --git a/provisioning/post-install.sh b/provisioning/post-install.sh
index 8bed9e7..dfce394 100644
--- a/provisioning/post-install.sh
+++ b/provisioning/post-install.sh
@@ -2,10 +2,11 @@
 set -ex
 
 # Setup swak4Foam
-(
-    cd "${HOME}/OpenFOAM/vagrant-v2112/platforms/linux64GccDPInt32Opt/"
-    tar -xzvf swak4Foam.tar.gz
-)
+# Disabled for now, as we don't have precompiled binaries for Ubuntu 22.04 yet.
+# (
+#     cd "${HOME}/OpenFOAM/vagrant-v2112/platforms/linux64GccDPInt32Opt/"
+#     tar -xzvf swak4Foam.tar.gz
+# )
 
 # Create a link to the default shared folder
 ln -sf /vagrant/ ~/Desktop/shared