diff --git a/.cargo/audit.toml b/.cargo/audit.toml
index dcba342..45c2009 100644
--- a/.cargo/audit.toml
+++ b/.cargo/audit.toml
@@ -1,5 +1,5 @@
 [advisories]
-ignore = ["RUSTSEC-2021-0139"] # Issue has been documented here: https://github.com/parallaxsecond/parsec-tool/security/advisories/GHSA-w88c-r29w-fv6m
+ignore = []
 informational_warnings = ["unmaintained"] # warn for categories of informational advisories
 severity_threshold = "low" # CVSS severity ("none", "low", "medium", "high", "critical")
 
diff --git a/Cargo.lock b/Cargo.lock
index b6c91a3..c842e8e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -71,7 +71,7 @@ version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 dependencies = [
- "hermit-abi",
+ "hermit-abi 0.1.19",
  "libc",
  "winapi",
 ]
@@ -109,7 +109,7 @@ version = "0.57.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fd4865004a46a0aafb2a0a5eb19d3c9fc46ee5f063a6cfc605c69ac9ecf5263d"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cexpr",
  "clang-sys",
  "lazy_static",
@@ -128,6 +128,12 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "327762f6e5a765692301e5bb513e0d9fef63be86bbc14528052b1cd3e6f03e07"
+
 [[package]]
 name = "block-buffer"
 version = "0.9.0"
@@ -192,7 +198,7 @@ checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
 dependencies = [
  "ansi_term",
  "atty",
- "bitflags",
+ "bitflags 1.3.2",
  "strsim",
  "textwrap",
  "unicode-width",
@@ -291,17 +297,27 @@ checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 
 [[package]]
 name = "env_logger"
-version = "0.8.4"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a19187fea3ac7e84da7dacf48de0c45d63c6a76f9490dae389aead16c243fce3"
+checksum = "85cdab6a89accf66733ad5a1693a4dcced6aeff64602b634530dd73c1f3ee9f0"
 dependencies = [
- "atty",
  "humantime",
+ "is-terminal",
  "log",
  "regex",
  "termcolor",
 ]
 
+[[package]]
+name = "errno"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3e13f66a2f95e32a39eaa81f6b95d42878ca0e1db0c7543723dfe12557e860"
+dependencies = [
+ "libc",
+ "windows-sys",
+]
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.0"
@@ -463,6 +479,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "hermit-abi"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d77f7ec81a6d05a3abb01ab6eb7590f6083d08449fe5a1c8b1e620283546ccb7"
+
 [[package]]
 name = "humantime"
 version = "2.1.0"
@@ -488,6 +510,17 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "is-terminal"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb0889898416213fab133e1d33a0e5858a48177452750691bde3666d0fdbaf8b"
+dependencies = [
+ "hermit-abi 0.3.3",
+ "rustix",
+ "windows-sys",
+]
+
 [[package]]
 name = "itertools"
 version = "0.10.5"
@@ -519,7 +552,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c57c852b14147e2bd58c14fde40398864453403ef632b1101db130282ee6e2cc"
 dependencies = [
  "base64 0.13.1",
- "bitflags",
+ "bitflags 1.3.2",
  "generic-array",
  "jsonwebtoken",
  "num-bigint",
@@ -584,6 +617,12 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da2479e8c062e40bf0066ffa0bc823de0a9368974af99c9f6df941d2c231e03f"
+
 [[package]]
 name = "lock_api"
 version = "0.4.10"
@@ -814,10 +853,8 @@ dependencies = [
 name = "parsec-tool"
 version = "0.6.0"
 dependencies = [
- "ansi_term",
  "atty",
  "base64 0.13.1",
- "clap",
  "env_logger",
  "log",
  "oid",
@@ -1030,7 +1067,7 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -1092,6 +1129,19 @@ dependencies = [
  "nom 7.1.3",
 ]
 
+[[package]]
+name = "rustix"
+version = "0.38.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "745ecfa778e66b2b63c88a61cb36e0eea109e803b0b86bf9879fbc77c70e86ed"
+dependencies = [
+ "bitflags 2.4.1",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.15"
@@ -1581,6 +1631,72 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
 [[package]]
 name = "x509-parser"
 version = "0.13.2"
diff --git a/Cargo.toml b/Cargo.toml
index 7c9fe36..a9997e0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,13 +13,11 @@ documentation = "https://docs.rs/crate/parsec-tool"
 rust-version = "1.66.0"
 
 [dependencies]
-ansi_term = "0.12.1"
 atty = "0.2.14"
-clap = "2.34.0"
 parsec-client = "0.16.0"
 structopt = "0.3.17"
 thiserror = "1.0.20"
-env_logger = "0.8.2"
+env_logger = "0.10.0"
 oid = { version = "0.2", features = ["serde_support"] }
 pem = "1.1.0"
 base64 = "0.13.0"