diff --git a/repositories.txt b/repositories.txt
index 3f66a38d..d9771e85 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -4795,16 +4795,6 @@ https://github.com/Protocentral/protocentral-ads1292r-arduino
 https://github.com/Protocentral/protocentral-ads1293-arduino
 https://github.com/Protocentral/protocentral-afe4490-arduino
 https://github.com/Protocentral/protocentral-pulse-express
-https://github.com/pschatzmann/arduino-audio-driver
-https://github.com/pschatzmann/arduino-audio-tools
-https://github.com/pschatzmann/arduino-fdk-aac
-https://github.com/pschatzmann/arduino-libhelix
-https://github.com/pschatzmann/arduino-libflac
-https://github.com/pschatzmann/arduino-liblame
-https://github.com/pschatzmann/arduino-libmad
-https://github.com/pschatzmann/arduino-libopus
-https://github.com/pschatzmann/arduino-libsbc
-https://github.com/pschatzmann/arduino-libvorbis-tremor
 https://github.com/pseudoVella/shift7seg
 https://github.com/pstolarz/CoopThreads
 https://github.com/pstolarz/NRF_HAL