diff --git a/Cargo.lock b/Cargo.lock
index 95d0a80..ef1ccdc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -212,9 +212,9 @@ dependencies = [
 
 [[package]]
 name = "ecdsa"
-version = "0.12.2"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05cb0ed2d2ce37766ac86c05f66973ace8c51f7f1533bedce8fb79e2b54b3f14"
+checksum = "713c32426287891008edb98f8b5c6abb2130aa043c93a818728fcda78606f274"
 dependencies = [
  "der",
  "elliptic-curve",
@@ -224,9 +224,9 @@ dependencies = [
 
 [[package]]
 name = "elliptic-curve"
-version = "0.10.3"
+version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd035cb119cbc25e91bb6f1abbfe341388ddb47a1fe5e77ca6bcbe231e87580b"
+checksum = "83e5c176479da93a0983f0a6fdc3c1b8e7d5be0d7fe3fe05a99f15b96582b9a8"
 dependencies = [
  "crypto-bigint",
  "ff",
@@ -708,9 +708,9 @@ checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
 
 [[package]]
 name = "sha-1"
-version = "0.9.6"
+version = "0.9.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c4cfa741c5832d0ef7fab46cabed29c2aae926db0b11bb2069edd8db5e64e16"
+checksum = "1a0c8611594e2ab4ebbf06ec7cbbf0a99450b8570e96cbf5188b5d5f6ef18d81"
 dependencies = [
  "block-buffer",
  "cfg-if",
@@ -783,9 +783,9 @@ checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
 [[package]]
 name = "subtle"
-version = "2.4.0"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e81da0851ada1f3e9d4312c704aa4f8806f0f9d69faaf8df2f3464b4a9437c2"
+checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
 name = "subtle-encoding"
@@ -1013,9 +1013,9 @@ dependencies = [
 
 [[package]]
 name = "zeroize"
-version = "1.3.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4756f7db3f7b5574938c3eb1c117038b8e07f95ee6718c0efad4ac21508f1efd"
+checksum = "eeafe61337cb2c879d328b74aa6cd9d794592c82da6be559fdf11493f02a2d18"
 dependencies = [
  "zeroize_derive",
 ]