diff --git a/Tools/environment_install/install-prereqs-ubuntu.sh b/Tools/environment_install/install-prereqs-ubuntu.sh
index aad541f14e..0ee56164dc 100755
--- a/Tools/environment_install/install-prereqs-ubuntu.sh
+++ b/Tools/environment_install/install-prereqs-ubuntu.sh
@@ -76,7 +76,7 @@ elif [ ${RELEASE_CODENAME} == 'focal' ] || [ ${RELEASE_CODENAME} == 'ulyssa' ];
     SITLCFML_VERSION="2.5"
     PYTHON_V="python3"
     PIP=pip3
-elif [ ${RELEASE_CODENAME} == 'groovy' ] || [ ${RELEASE_CODENAME} == 'hirsute' ]; then
+elif [ ${RELEASE_CODENAME} == 'groovy' ] || [ ${RELEASE_CODENAME} == 'hirsute' ] || [ ${RELEASE_CODENAME} == 'bullseye' ]; then
     SITLFML_VERSION="2.5"
     SITLCFML_VERSION="2.5"
     PYTHON_V="python3"
@@ -190,7 +190,7 @@ echo "Done!"
 if [ ${RELEASE_CODENAME} == 'focal' ] || [ ${RELEASE_CODENAME} == 'ulyssa' ]; then
     BASE_PKGS+=" python-is-python3"
     SITL_PKGS+=" libpython3-stdlib" # for argparse
-elif [ ${RELEASE_CODENAME} == 'groovy' ] || [ ${RELEASE_CODENAME} == 'hirsute' ]; then
+elif [ ${RELEASE_CODENAME} == 'groovy' ] || [ ${RELEASE_CODENAME} == 'hirsute' ] || [ ${RELEASE_CODENAME} == 'bullseye' ]; then
     BASE_PKGS+=" python-is-python3"
     SITL_PKGS+=" libpython3-stdlib" # for argparse
 else
@@ -199,12 +199,10 @@ fi
 
 # Check for graphical package for MAVProxy
 if [[ $SKIP_AP_GRAPHIC_ENV -ne 1 ]]; then
-  if [ ${RELEASE_CODENAME} == 'groovy' ] || [ ${RELEASE_CODENAME} == 'hirsute' ]; then
-    SITL_PKGS+=" python3-wxgtk4.0"
-    SITL_PKGS+=" fonts-freefont-ttf libfreetype6-dev libjpeg8-dev libpng16-16 libportmidi-dev libsdl-image1.2-dev libsdl-mixer1.2-dev libsdl-ttf2.0-dev libsdl1.2-dev"  # for pygame
-  elif [ ${RELEASE_CODENAME} == 'focal' ] || [ ${RELEASE_CODENAME} == 'ulyssa' ]; then
-    SITL_PKGS+=" python3-wxgtk4.0"
-    SITL_PKGS+=" fonts-freefont-ttf libfreetype6-dev libjpeg8-dev libpng16-16 libportmidi-dev libsdl-image1.2-dev libsdl-mixer1.2-dev libsdl-ttf2.0-dev libsdl1.2-dev"  # for pygame
+  if [ ${RELEASE_CODENAME} == 'bullseye' ]; then
+    SITL_PKGS+=" libjpeg62-turbo-dev"
+  elif [ ${RELEASE_CODENAME} == 'groovy' ] || [ ${RELEASE_CODENAME} == 'hirsute' ] ||  [ ${RELEASE_CODENAME} == 'focal' ] || [ ${RELEASE_CODENAME} == 'ulyssa' ]; then
+    SITL_PKGS+=" libjpeg8-dev"
   elif apt-cache search python-wxgtk3.0 | grep wx; then
       SITL_PKGS+=" python-wxgtk3.0"
   else
@@ -212,6 +210,10 @@ if [[ $SKIP_AP_GRAPHIC_ENV -ne 1 ]]; then
       SITL_PKGS+=" python-wxgtk2.8"
       SITL_PKGS+=" fonts-freefont-ttf libfreetype6-dev libjpeg8-dev libpng12-0 libportmidi-dev libsdl-image1.2-dev libsdl-mixer1.2-dev libsdl-ttf2.0-dev libsdl1.2-dev"  # for pygame
   fi
+  if [ ${RELEASE_CODENAME} == 'bullseye' ] ||  [ ${RELEASE_CODENAME} == 'groovy' ] || [ ${RELEASE_CODENAME} == 'hirsute' ] ||  [ ${RELEASE_CODENAME} == 'focal' ] || [ ${RELEASE_CODENAME} == 'ulyssa' ]; then
+    SITL_PKGS+=" python3-wxgtk4.0"
+    SITL_PKGS+=" fonts-freefont-ttf libfreetype6-dev libpng16-16 libportmidi-dev libsdl-image1.2-dev libsdl-mixer1.2-dev libsdl-ttf2.0-dev libsdl1.2-dev"  # for pygame
+  fi
 fi
 
 # Check if we need to manually install realpath