diff --git a/ptest/Cargo.lock b/ptest/Cargo.lock
index 84f0e485cb..54220ee92b 100644
--- a/ptest/Cargo.lock
+++ b/ptest/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "addr2line"
@@ -416,9 +416,9 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.1.44"
+version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
+checksum = "1b797afad3f312d1c66a56d11d0316f916356d11bd158fbc6ca6389ff6bf805a"
 dependencies = [
  "libc",
  "wasi",
diff --git a/sim/Cargo.toml b/sim/Cargo.toml
index 6d2262d90b..3fc136b3b6 100644
--- a/sim/Cargo.toml
+++ b/sim/Cargo.toml
@@ -46,7 +46,7 @@ log = "0.4"
 env_logger = "0.9"
 simflash = { path = "simflash" }
 mcuboot-sys = { path = "mcuboot-sys" }
-ring = "0.16.11"
+ring = "0.17.14"
 untrusted = "0.9"
 pem = "1.0"
 cipher = "0.3"