diff --git a/Cargo.lock b/Cargo.lock
index 25ffb2aba9..1cf5d0650f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -134,7 +134,7 @@ name = "backtrace-sys"
 version = "0.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -349,7 +349,7 @@ name = "bzip2-sys"
 version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -390,7 +390,7 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.38"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rayon 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -469,7 +469,7 @@ name = "clear_on_drop"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -496,7 +496,7 @@ name = "cmake"
 version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1220,7 +1220,7 @@ name = "grpcio-sys"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "cmake 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1667,7 +1667,7 @@ name = "libloading"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1677,7 +1677,7 @@ version = "5.18.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bindgen 0.47.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1825,7 +1825,7 @@ name = "miniz_oxide_c_api"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "miniz_oxide 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1928,7 +1928,7 @@ version = "0.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1940,7 +1940,7 @@ version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2040,7 +2040,7 @@ version = "0.9.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2616,7 +2616,7 @@ name = "reed-solomon-erasure"
 version = "3.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3243,7 +3243,7 @@ dependencies = [
 name = "solana-chacha-sys"
 version = "0.18.0-pre1"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -4506,7 +4506,7 @@ name = "sys-info"
 version = "0.5.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -5269,7 +5269,7 @@ dependencies = [
 "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 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0e7e19db9a3892c88c74cbbdcd218196068a928f1b60e736c448b13a1e81f277"
-"checksum cc 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)" = "ce400c638d48ee0e9ab75aef7997609ec57367ccfe1463f21bf53c3eca67bf46"
+"checksum cc 1.0.40 (registry+https://github.com/rust-lang/crates.io-index)" = "b548a4ee81fccb95919d4e22cfea83c7693ebfd78f0495493178db20b3139da7"
 "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"
 "checksum cgmath 0.16.1 (registry+https://github.com/rust-lang/crates.io-index)" = "64a4b57c8f4e3a2e9ac07e0f6abc9c24b6fc9e1b54c3478cfb598f3d0023e51c"
diff --git a/chacha-sys/Cargo.toml b/chacha-sys/Cargo.toml
index a20f5f8132..b9ec8c8364 100644
--- a/chacha-sys/Cargo.toml
+++ b/chacha-sys/Cargo.toml
@@ -9,4 +9,4 @@ license = "Apache-2.0"
 edition = "2018"
 
 [build-dependencies]
-cc = "1.0.38"
+cc = "1.0.40"