diff --git a/avr/libraries/Kaleidoscope b/avr/libraries/Kaleidoscope
index 58bd7ec..c66efe7 160000
--- a/avr/libraries/Kaleidoscope
+++ b/avr/libraries/Kaleidoscope
@@ -1 +1 @@
-Subproject commit 58bd7ec8a440e6fc7fa6dcd306350196131d225a
+Subproject commit c66efe773ec805a620c9645ad0fca02dba919973
diff --git a/build-tools b/build-tools
index ea8e3fb..d23b5bd 160000
--- a/build-tools
+++ b/build-tools
@@ -1 +1 @@
-Subproject commit ea8e3fb60dc8afcfe1397ccfaef83c7e8eaae91b
+Subproject commit d23b5bd10d0cc8c2d66c773d6d2754de083c2621