diff --git a/Cargo.lock b/Cargo.lock
index 88790ec110..5ae1ef97ed 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -393,7 +393,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cbindgen"
-version = "0.12.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3953,7 +3953,7 @@ version = "0.23.0"
 dependencies = [
  "bincode 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "bs58 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "cbindgen 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cbindgen 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ed25519-dalek 1.0.0-pre.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5558,7 +5558,7 @@ dependencies = [
 "checksum c2-chacha 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7d64d04786e0f528460fc884753cf8dddcc466be308f6026f8e355c41a0e4101"
 "checksum c_linked_list 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4964518bd3b4a8190e832886cdc0da9794f12e8e6c1613a9e90ff331c4c8724b"
 "checksum cast 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "926013f2860c46252efceabb19f4a6b308197505082c609025aa6706c011d427"
-"checksum cbindgen 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d94e15ad254cde8d71f12f8eeab1aa7ea997f02849f8eba4e81e6e7f46592b2"
+"checksum cbindgen 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4984c9e9ed8bd39c9713b1611a251f176b354fa009dc9af9163849129d01ca8b"
 "checksum cc 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)" = "f52a465a666ca3d838ebbf08b241383421412fe7ebb463527bba275526d89f76"
 "checksum cexpr 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "a7fa24eb00d5ffab90eaeaf1092ac85c04c64aaf358ea6f84505b8116d24c6af"
 "checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
diff --git a/sdk-c/Cargo.toml b/sdk-c/Cargo.toml
index 86dfab0cf1..aa5cba1a6b 100644
--- a/sdk-c/Cargo.toml
+++ b/sdk-c/Cargo.toml
@@ -23,4 +23,4 @@ ed25519-dalek = "1.0.0-pre.1"
 sha2 = "0.8.0"
 
 [build-dependencies]
-cbindgen = "0.12.0"
\ No newline at end of file
+cbindgen = "0.12.1"
\ No newline at end of file