diff --git a/install.sh b/install.sh
index 78f1204..19cf4a4 100644
--- a/install.sh
+++ b/install.sh
@@ -18,15 +18,12 @@ declare -A libraries=(
   ["BOSL2"]="https://github.com/BelfrySCAD/BOSL2.git"
   ["BOSL"]="https://github.com/revarbat/BOSL.git"
   ["MCAD"]="https://github.com/openscad/MCAD.git"
-  ["BOLTS"]="https://github.com/boltsparts/BOLTS.git"
   ["nutsnbolts"]="https://github.com/JohK/nutsnbolts.git"
   ["openscad-fillets"]="https://github.com/jfhbrook/openscad-fillets.git"
   ["openscad-model-library"]="https://github.com/cznewt/openscad-model-library.git"
   ["OpenSCAD-Arduino-Mounting-Library"]="https://github.com/kellyegan/OpenSCAD-Arduino-Mounting-Library.git"
   ["BezierScad"]="https://github.com/chadkirby/BezierScad.git"
-  ["OpenSCAD-Track"]="https://github.com/joostn/OpenSCAD-Track.git"
   ["Chamfers-for-OpenSCAD"]="https://github.com/SebiTimeWaster/Chamfers-for-OpenSCAD.git"
-  ["openjscad-u-joints"]="https://github.com/celer/openjscad-u-joints.git"
 )
 
 for lib in "${!libraries[@]}"; do