diff --git a/vendor/ethash b/vendor/ethash
index 10c9ec2ff..31ec33cf8 160000
--- a/vendor/ethash
+++ b/vendor/ethash
@@ -1 +1 @@
-Subproject commit 10c9ec2ff745be1771fd08a59b9eff63f1196c3a
+Subproject commit 31ec33cf8e511fecd2cab6f57ffdfa81ca5ce9bd
diff --git a/vendor/nimcrypto b/vendor/nimcrypto
index e41d68653..2bbf7c3c0 160000
--- a/vendor/nimcrypto
+++ b/vendor/nimcrypto
@@ -1 +1 @@
-Subproject commit e41d686539e2f17fa167ca6a963fb4ded704fd05
+Subproject commit 2bbf7c3c0185448d933f2b66ae1a74deef1fd0c9