diff --git a/modules/openepcis-document-converter b/modules/openepcis-document-converter
index bdb9d25..7c381b8 160000
--- a/modules/openepcis-document-converter
+++ b/modules/openepcis-document-converter
@@ -1 +1 @@
-Subproject commit bdb9d257e3061cd5b49d7a01b54df54b9ec44b18
+Subproject commit 7c381b83e17d7e7ae61ef5ccb93900869596f65a
diff --git a/modules/openepcis-epcis-constants b/modules/openepcis-epcis-constants
index 6ef15b8..7c492f0 160000
--- a/modules/openepcis-epcis-constants
+++ b/modules/openepcis-epcis-constants
@@ -1 +1 @@
-Subproject commit 6ef15b8e49b3e73011627d41a198b33df0ef4b2b
+Subproject commit 7c492f06aebdf3e193400beadc65de47483b6b4b
diff --git a/modules/openepcis-s3 b/modules/openepcis-s3
index fcf8d72..83bc8e3 160000
--- a/modules/openepcis-s3
+++ b/modules/openepcis-s3
@@ -1 +1 @@
-Subproject commit fcf8d722c34dff0b94b9a435ca666fc9536a0e1a
+Subproject commit 83bc8e3fbc79dc090baafc82ee7558129cb9801a