diff --git a/scad/common b/scad/common
index b499c28..53f4dd4 160000
--- a/scad/common
+++ b/scad/common
@@ -1 +1 @@
-Subproject commit b499c2810117b5ca57014d5cb4219cf68b4c5c0f
+Subproject commit 53f4dd4a2d6dd038c1beb97f8ae721ec5905a43b
diff --git a/scad/sprocketed_roller b/scad/sprocketed_roller
index 4482a47..d94c021 160000
--- a/scad/sprocketed_roller
+++ b/scad/sprocketed_roller
@@ -1 +1 @@
-Subproject commit 4482a471bb357e93e9cabe9efaecba0370a3a0bd
+Subproject commit d94c0212e9ba3237d5c107f7a95a78935c4f3b87