diff --git a/.gitmodules b/.gitmodules
index 7f458d7..762351f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "hash/cpu/src/constantine"]
 	path = hash/cpu/src/constantine
 	url = https://github.com/mratsim/constantine/
+[submodule "hash/cpu/src/Blake3"]
+	path = hash/cpu/src/Blake3
+	url = https://github.com/BLAKE3-team/BLAKE3
diff --git a/hash/cpu/src/Blake3 b/hash/cpu/src/Blake3
new file mode 160000
index 0000000..dd30dcb
--- /dev/null
+++ b/hash/cpu/src/Blake3
@@ -0,0 +1 @@
+Subproject commit dd30dcb00221591db3a983e0215b81d86cff941d