diff --git a/Cargo.lock b/Cargo.lock
index 1157029157907d..626541d61f3a08 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1464,7 +1464,7 @@ dependencies = [
 [[package]]
 name = "curve25519-dalek"
 version = "3.2.1"
-source = "git+https://github.com/solana-labs/curve25519-dalek.git?rev=c14774464c4d38de553c6ef2f48a10982c1b4801#c14774464c4d38de553c6ef2f48a10982c1b4801"
+source = "git+https://github.com/solana-labs/curve25519-dalek.git?rev=b500cdc2a920cd5bff9e2dd974d7b97349d61464#b500cdc2a920cd5bff9e2dd974d7b97349d61464"
 dependencies = [
  "byteorder",
  "digest 0.9.0",
diff --git a/Cargo.toml b/Cargo.toml
index caccf5189e49ee..e6168de4d7aec8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -516,9 +516,9 @@ rev = "6105d7a5591aefa646a95d12b5e8d3f55a9214ef"
 #
 # https://github.com/dalek-cryptography/curve25519-dalek/commit/29e5c29b0e5c6821e4586af58b0d0891dd2ec639
 #
-# Comparison with `c14774464c4d38de553c6ef2f48a10982c1b4801`:
+# Comparison with `b500cdc2a920cd5bff9e2dd974d7b97349d61464`:
 #
-# https://github.com/dalek-cryptography/curve25519-dalek/compare/3.2.1...solana-labs:curve25519-dalek:c14774464c4d38de553c6ef2f48a10982c1b4801
+# https://github.com/dalek-cryptography/curve25519-dalek/compare/3.2.1...solana-labs:curve25519-dalek:b500cdc2a920cd5bff9e2dd974d7b97349d61464
 #
 # Or, using the branch name instead of the hash:
 #
@@ -526,4 +526,4 @@ rev = "6105d7a5591aefa646a95d12b5e8d3f55a9214ef"
 #
 [patch.crates-io.curve25519-dalek]
 git = "https://github.com/solana-labs/curve25519-dalek.git"
-rev = "c14774464c4d38de553c6ef2f48a10982c1b4801"
+rev = "b500cdc2a920cd5bff9e2dd974d7b97349d61464"