diff --git a/validation/local_ping_pong_openssl/Cargo.lock b/validation/local_ping_pong_openssl/Cargo.lock
index 22ca0d9..86f2eb0 100644
--- a/validation/local_ping_pong_openssl/Cargo.lock
+++ b/validation/local_ping_pong_openssl/Cargo.lock
@@ -78,9 +78,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.56"
+version = "1.2.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aebf35691d1bfb0ac386a69bac2fde4dd276fb618cf8bf4f5318fe285e821bb2"
+checksum = "7a0dd1ca384932ff3641c8718a02769f1698e7563dc6974ffd03346116310423"
 dependencies = [
  "find-msvc-tools",
  "shlex",
@@ -164,9 +164,9 @@ dependencies = [
 
 [[package]]
 name = "crypto-bigint"
-version = "0.7.1"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fde2467e74147f492aebb834985186b2c74761927b8b9b3bd303bcb2e72199d"
+checksum = "e9b6a7421484856c90cb2e996b91068d608539bb4e6f0a111b16d70678824d09"
 dependencies = [
  "cpubits",
  "ctutils",
@@ -258,9 +258,9 @@ dependencies = [
 
 [[package]]
 name = "digest"
-version = "0.11.1"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "285743a676ccb6b3e116bc14cc69319b957867930ae9c4822f8e0f54509d7243"
+checksum = "4850db49bf08e663084f7fb5c87d202ef91a3907271aff24a94eb97ff039153c"
 dependencies = [
  "block-buffer",
  "const-oid",
@@ -435,9 +435,9 @@ dependencies = [
 
 [[package]]
 name = "hmac"
-version = "0.13.0-rc.5"
+version = "0.13.0-rc.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ef451d73f36d8a3f93ad32c332ea01146c9650e1ec821a9b0e46c01277d544f8"
+checksum = "60017b071c523c9e5a55dd1253582bff6150c5e96a7e8511e419de1ab5ee97f9"
 dependencies = [
  "digest",
 ]
@@ -482,9 +482,9 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.17"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"
+checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
 
 [[package]]
 name = "leb128fmt"