diff --git a/programs/bpf/Cargo.lock b/programs/bpf/Cargo.lock
index 29cd531290..95d6bb4870 100644
--- a/programs/bpf/Cargo.lock
+++ b/programs/bpf/Cargo.lock
@@ -258,7 +258,7 @@ dependencies = [
 
 [[package]]
 name = "curve25519-dalek"
-version = "2.0.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -287,7 +287,7 @@ version = "1.0.0-pre.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "clear_on_drop 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "curve25519-dalek 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curve25519-dalek 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1535,7 +1535,7 @@ dependencies = [
  "backtrace 0.3.48 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
- "curve25519-dalek 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curve25519-dalek 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ed25519-dalek 1.0.0-pre.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2307,7 +2307,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum crossbeam-utils 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
 "checksum crypto-mac 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4434400df11d95d556bac068ddfedd482915eb18fe8bea89bc80b6e4b1c179e5"
 "checksum ct-logs 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4d3686f5fa27dbc1d76c751300376e167c5a43387f44bb451fd1c24776e49113"
-"checksum curve25519-dalek 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "26778518a7f6cffa1d25a44b602b62b979bd88adb9e99ffec546998cf3404839"
+"checksum curve25519-dalek 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5d85653f070353a16313d0046f173f70d1aadd5b42600a14de626f0dfb3473a5"
 "checksum digest 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
 "checksum dtoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "4358a9e11b9a09cf52383b451b49a169e8d797b68aa02301ff586d70d9661ea3"
 "checksum ed25519-dalek 1.0.0-pre.3 (registry+https://github.com/rust-lang/crates.io-index)" = "978710b352437433c97b2bff193f2fb1dfd58a093f863dd95e225a19baa599a2"
diff --git a/programs/librapay/Cargo.lock b/programs/librapay/Cargo.lock
index e43cf28b2d..75b0eb6eb6 100644
--- a/programs/librapay/Cargo.lock
+++ b/programs/librapay/Cargo.lock
@@ -409,7 +409,7 @@ dependencies = [
 
 [[package]]
 name = "curve25519-dalek"
-version = "2.0.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -499,7 +499,7 @@ version = "1.0.0-pre.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "clear_on_drop 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "curve25519-dalek 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curve25519-dalek 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2296,7 +2296,7 @@ dependencies = [
  "backtrace 0.3.48 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.49 (registry+https://github.com/rust-lang/crates.io-index)",
- "curve25519-dalek 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curve25519-dalek 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ed25519-dalek 1.0.0-pre.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3601,7 +3601,7 @@ name = "x25519-dalek"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "curve25519-dalek 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curve25519-dalek 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "zeroize 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3678,7 +3678,7 @@ dependencies = [
 "checksum crypto-mac 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4434400df11d95d556bac068ddfedd482915eb18fe8bea89bc80b6e4b1c179e5"
 "checksum ct-logs 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4d3686f5fa27dbc1d76c751300376e167c5a43387f44bb451fd1c24776e49113"
 "checksum curve25519-dalek 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8b7dcd30ba50cdf88b55b033456138b7c0ac4afdc436d82e1b79f370f24cc66d"
-"checksum curve25519-dalek 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "26778518a7f6cffa1d25a44b602b62b979bd88adb9e99ffec546998cf3404839"
+"checksum curve25519-dalek 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5d85653f070353a16313d0046f173f70d1aadd5b42600a14de626f0dfb3473a5"
 "checksum data-encoding 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "72aa14c04dfae8dd7d8a2b1cb7ca2152618cd01336dbfe704b8dcbf8d41dbd69"
 "checksum derivative 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cb582b60359da160a9477ee80f15c8d784c477e69c217ef2cdd4169c24ea380f"
 "checksum diff 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "0e25ea47919b1560c4e3b7fe0aaab9becf5b84a10325ddf7db0f0ba5e1026499"
diff --git a/programs/move_loader/Cargo.lock b/programs/move_loader/Cargo.lock
index 2fbab56f9c..47f0093e20 100644
--- a/programs/move_loader/Cargo.lock
+++ b/programs/move_loader/Cargo.lock
@@ -460,9 +460,9 @@ dependencies = [
 
 [[package]]
 name = "curve25519-dalek"
-version = "2.0.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26778518a7f6cffa1d25a44b602b62b979bd88adb9e99ffec546998cf3404839"
+checksum = "5d85653f070353a16313d0046f173f70d1aadd5b42600a14de626f0dfb3473a5"
 dependencies = [
  "byteorder",
  "digest",
@@ -561,7 +561,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "978710b352437433c97b2bff193f2fb1dfd58a093f863dd95e225a19baa599a2"
 dependencies = [
  "clear_on_drop",
- "curve25519-dalek 2.0.0",
+ "curve25519-dalek 2.1.0",
  "rand 0.7.3",
  "serde",
  "sha2",
@@ -2464,7 +2464,7 @@ dependencies = [
  "backtrace",
  "bytes 0.4.12",
  "cc",
- "curve25519-dalek 2.0.0",
+ "curve25519-dalek 2.1.0",
  "ed25519-dalek",
  "either",
  "failure",
@@ -3768,7 +3768,7 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "637ff90c9540fa3073bb577e65033069e4bae7c79d49d74aa3ffdf5342a53217"
 dependencies = [
- "curve25519-dalek 2.0.0",
+ "curve25519-dalek 2.1.0",
  "rand_core 0.5.1",
  "zeroize",
 ]