diff --git a/resources/sitl/linux/Ser2TCP b/resources/sitl/linux/Ser2TCP
deleted file mode 100644
index 281ea27c..00000000
Binary files a/resources/sitl/linux/Ser2TCP and /dev/null differ
diff --git a/resources/sitl/linux/inav_SITL b/resources/sitl/linux/inav_SITL
index f4133241..7136489b 100755
Binary files a/resources/sitl/linux/inav_SITL and b/resources/sitl/linux/inav_SITL differ
diff --git a/resources/sitl/linux/libSystem.IO.Ports.Native.so b/resources/sitl/linux/libSystem.IO.Ports.Native.so
deleted file mode 100644
index 8c12532e..00000000
Binary files a/resources/sitl/linux/libSystem.IO.Ports.Native.so and /dev/null differ
diff --git a/resources/sitl/macos/Ser2TCP b/resources/sitl/macos/Ser2TCP
deleted file mode 100755
index e4f36dca..00000000
Binary files a/resources/sitl/macos/Ser2TCP and /dev/null differ
diff --git a/resources/sitl/macos/inav_SITL b/resources/sitl/macos/inav_SITL
index 10cd2035..c06dae68 100755
Binary files a/resources/sitl/macos/inav_SITL and b/resources/sitl/macos/inav_SITL differ
diff --git a/resources/sitl/windows/Ser2TCP.exe b/resources/sitl/windows/Ser2TCP.exe
deleted file mode 100644
index b9219b25..00000000
Binary files a/resources/sitl/windows/Ser2TCP.exe and /dev/null differ
diff --git a/resources/sitl/windows/inav_SITL.exe b/resources/sitl/windows/inav_SITL.exe
index b3f7d667..d3eb1af4 100755
Binary files a/resources/sitl/windows/inav_SITL.exe and b/resources/sitl/windows/inav_SITL.exe differ