diff --git a/Cargo.lock b/Cargo.lock
index 39487f2..835cc1d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -69,9 +69,9 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
 [[package]]
 name = "cipher"
-version = "0.5.0-rc.3"
+version = "0.5.0-rc.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98d708bac5451350d56398433b19a7889022fa9187df1a769c0edbc3b2c03167"
+checksum = "b557bad79bc426785757001b5d732f323ae965363983d758295c1a1935496880"
 dependencies = [
  "crypto-common",
  "inout",
@@ -99,9 +99,9 @@ dependencies = [
 
 [[package]]
 name = "crypto-common"
-version = "0.2.0-rc.9"
+version = "0.2.0-rc.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41b8986f836d4aeb30ccf4c9d3bd562fd716074cfd7fc4a2948359fbd21ed809"
+checksum = "7d2bcc93d5cde6659e8649fc412894417ebc14dee54cfc6ee439c683a4a58342"
 dependencies = [
  "hybrid-array",
 ]
@@ -117,9 +117,9 @@ dependencies = [
 
 [[package]]
 name = "digest"
-version = "0.11.0-rc.5"
+version = "0.11.0-rc.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebf9423bafb058e4142194330c52273c343f8a5beb7176d052f0e73b17dd35b9"
+checksum = "ca14c221bd9052fd2da7c34a2eeb5ae54732db28be47c35937be71793d675422"
 dependencies = [
  "block-buffer",
  "crypto-common",
@@ -199,9 +199,9 @@ checksum = "4852c654c9650d06a4293146ead04bedcf29861dc0de1115ca1492b7a27c50aa"
 
 [[package]]
 name = "libc"
-version = "0.2.179"
+version = "0.2.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5a2d376baa530d1238d133232d15e239abad80d05838b4b59354e5268af431f"
+checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"
 
 [[package]]
 name = "one-step-kdf"