diff --git a/.gitmodules b/.gitmodules
index c058544..66f1c6f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -100,3 +100,6 @@
 [submodule "vendor/nim-faststreams"]
 	path = vendor/nim-faststreams
 	url = https://github.com/status-im/nim-faststreams.git
+[submodule "vendor/nim-poseidon2"]
+	path = vendor/nim-poseidon2
+	url = https://github.com/codex-storage/nim-poseidon2.git
diff --git a/vendor/nim-faststreams b/vendor/nim-faststreams
index c51315d..cf8d4d2 160000
--- a/vendor/nim-faststreams
+++ b/vendor/nim-faststreams
@@ -1 +1 @@
-Subproject commit c51315d0ae5eb2594d0bf41181d0e1aca1b3c01d
+Subproject commit cf8d4d22636b8e514caf17e49f9c786ac56b0e85
diff --git a/vendor/nim-poseidon2 b/vendor/nim-poseidon2
new file mode 160000
index 0000000..4e2c6e6
--- /dev/null
+++ b/vendor/nim-poseidon2
@@ -0,0 +1 @@
+Subproject commit 4e2c6e619b2f2859aaa4b2aed2f346ea4d0c67a3