diff --git a/crypto/keccak/README.md b/crypto/keccak/README.md
index f6dd4cfe03..295a5b958c 100644
--- a/crypto/keccak/README.md
+++ b/crypto/keccak/README.md
@@ -1,5 +1,6 @@
 This is a vendored and modified copy of golang.org/x/crypto/sha3, with an assembly
-implementation of keccak256.
+implementation of keccak256. We wish to retain the assembly implementation,
+which was removed in v0.44.0.
 
 Ethereum uses a 'legacy' variant of Keccak, which was defined before it became SHA3. As
 such, we cannot use the standard library crypto/sha3 package.