diff --git a/Cargo.lock b/Cargo.lock
index 9de8250d53..8a5fc84382 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,9 +10,9 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
 [[package]]
 name = "chacha20"
-version = "0.10.0-rc.7"
+version = "0.10.0-rc.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26f659b53b7f4e776e0cb370508f21d62a22349009195b1089de5f9b24afba2f"
+checksum = "31cd65b2ca03198c223cd9a8fa1152c4ec251cd79049f6dc584152ad3fb5ba9d"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -190,9 +190,9 @@ dependencies = [
 
 [[package]]
 name = "rand_core"
-version = "0.10.0-rc-4"
+version = "0.10.0-rc-5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43bb1e3655c24705492d72208c9bacdefe07c30c14b8f7664c556a3e1953b72c"
+checksum = "05a06e03bd1f2ae861ab9e7498b6c64ed3dadb9ce175c0464a2522a5f23c0045"
 
 [[package]]
 name = "rand_pcg"
@@ -340,6 +340,6 @@ dependencies = [
 
 [[package]]
 name = "zmij"
-version = "1.0.15"
+version = "1.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94f63c051f4fe3c1509da62131a678643c5b6fbdc9273b2b79d4378ebda003d2"
+checksum = "dfcd145825aace48cff44a8844de64bf75feec3080e0aa5cdbde72961ae51a65"