diff --git a/abate b/abate
index 97c5224..dfc003e 160000
--- a/abate
+++ b/abate
@@ -1 +1 @@
-Subproject commit 97c52244e13f02ae358092b4d9cc48445f7ebbda
+Subproject commit dfc003e4c095dc27ca100638fcd9c9673d87953a
diff --git a/hawick b/hawick
index 05d80f2..ba701d1 160000
--- a/hawick
+++ b/hawick
@@ -1 +1 @@
-Subproject commit 05d80f20f8913d756c73cf877c4100f592f320b2
+Subproject commit ba701d1979cd91e8de2bd060e76e2312f97e302f
diff --git a/meyer b/meyer
index d30df0e..e666dad 160000
--- a/meyer
+++ b/meyer
@@ -1 +1 @@
-Subproject commit d30df0e98ceaed1697eefc0c558d7c8d6456867a
+Subproject commit e666dad85af88ad79a4625e73ff0c2687cbe1c5e
diff --git a/networkx b/networkx
index d6a0832..169b7bc 160000
--- a/networkx
+++ b/networkx
@@ -1 +1 @@
-Subproject commit d6a0832864bc26643b9a5cc27f00dc96175fa5a8
+Subproject commit 169b7bce4d541a8475492fb07ba3c1fbef72e69a
diff --git a/tarjan b/tarjan
index ecc6296..91beb23 160000
--- a/tarjan
+++ b/tarjan
@@ -1 +1 @@
-Subproject commit ecc6296d8540e97f1232789bff92bbbda346845b
+Subproject commit 91beb23e1f28ef9228591620d585e3c5b24ecce3