diff --git a/libs/regex b/libs/regex
index 8b4da77f83..a804285fb6 160000
--- a/libs/regex
+++ b/libs/regex
@@ -1 +1 @@
-Subproject commit 8b4da77f83c18e904347ecf56aca03c96e2d8917
+Subproject commit a804285fb66432408afd61a05fb6c8aa16be50fc
diff --git a/libs/static_assert b/libs/static_assert
index 52bc1a8fb7..0e39de168b 160000
--- a/libs/static_assert
+++ b/libs/static_assert
@@ -1 +1 @@
-Subproject commit 52bc1a8fb78ea8d7ae9b2dbb7119a429e2140c1a
+Subproject commit 0e39de168b793573404807839e5bb7edb8d31a68
diff --git a/libs/type_traits b/libs/type_traits
index e77b6884a7..8ed1eb51be 160000
--- a/libs/type_traits
+++ b/libs/type_traits
@@ -1 +1 @@
-Subproject commit e77b6884a7ceec925e173c61027ececdae9280fa
+Subproject commit 8ed1eb51be3d7012fb977caa24426b59ad2ccebf
diff --git a/libs/utility b/libs/utility
index 1616f6f5a8..746e0fad2b 160000
--- a/libs/utility
+++ b/libs/utility
@@ -1 +1 @@
-Subproject commit 1616f6f5a8841a506aa1a86eb2c89242f9e28ac8
+Subproject commit 746e0fad2b86d53ecbedbb5156281d15571af22d
diff --git a/people/john_maddock.htm b/people/john_maddock.htm
index 6a014956c2..50f1f2cd4f 100644
--- a/people/john_maddock.htm
+++ b/people/john_maddock.htm
@@ -28,7 +28,7 @@
but found that computers smell less and explode less often!
John is the author of the
regex++ regular expression package, has an almost pathological interest
- in anything that "can't be done", and can be contacted at
- John_Maddock@compuserve.com.
+ in anything that "can't be done", and can be contacted at
+ john@johnmaddock.co.uk.