diff --git a/vendor/nim-faststreams b/vendor/nim-faststreams
index 8ff78919a..f26a9909c 160000
--- a/vendor/nim-faststreams
+++ b/vendor/nim-faststreams
@@ -1 +1 @@
-Subproject commit 8ff78919aa5a23aecaf4a647e23cfa8ecda6736a
+Subproject commit f26a9909cebf29cc5e61dd795427eda60c6e431e
diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index 9f9c08b9a..9721c85c8 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit 9f9c08b9a748b13942594ca0f075ff9dbaaf9bb9
+Subproject commit 9721c85c8c56509ccc01f1524f40efed1144e90f