diff --git a/Cargo.lock b/Cargo.lock
index e7a0100..6f7f175 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -376,6 +376,12 @@ version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "base64ct"
 version = "1.6.0"
@@ -2853,7 +2859,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cde824a14b7c14f85caff81225f411faacc04a2013f41670f41443742b1c1c55"
 dependencies = [
  "async-compression",
- "base64",
+ "base64 0.21.2",
  "bytes",
  "cookie 0.16.2",
  "cookie_store",
@@ -3039,7 +3045,7 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2d3987094b1d07b653b7dfdc3f70ce9a1da9c51ac18c1b06b662e4f9a0e9f4b2"
 dependencies = [
- "base64",
+ "base64 0.21.2",
 ]
 
 [[package]]
@@ -3520,7 +3526,7 @@ name = "steamguard"
 version = "0.13.0"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.22.1",
  "cookie 0.14.4",
  "hmac",
  "lazy_static",
@@ -3542,7 +3548,6 @@ dependencies = [
  "serde_path_to_error",
  "sha1 0.10.5",
  "sha2",
- "standback",
  "thiserror",
  "uuid",
  "zeroize",
@@ -3555,7 +3560,7 @@ dependencies = [
  "aes 0.8.3",
  "anyhow",
  "argon2",
- "base64",
+ "base64 0.22.1",
  "cbc",
  "clap",
  "clap_complete",
@@ -3584,7 +3589,6 @@ dependencies = [
  "serde_json",
  "serde_path_to_error",
  "sha1 0.10.5",
- "standback",
  "stderrlog",
  "steamguard",
  "tempfile",
diff --git a/Cargo.toml b/Cargo.toml
index 023c702..56a62e6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ members = ["steamguard"]
 name = "steamguard-cli"
 version = "0.13.0"
 authors = ["dyc3 (Carson McManus) <carson.mcmanus1@gmail.com>"]
-edition = "2018"
+edition = "2021"
 description = "A command line utility to generate Steam 2FA codes and respond to confirmations."
 keywords = ["steam", "2fa", "steamguard", "authentication", "cli"]
 categories = ["command-line-utilities"]
@@ -29,7 +29,7 @@ path = "src/main.rs"
 
 [dependencies]
 anyhow = "^1.0"
-base64 = "0.21.2"
+base64 = "0.22.1"
 text_io = "0.1.8"
 rpassword = "7.2.0"
 reqwest = { version = "0.11", default-features = false, features = [
@@ -43,7 +43,6 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 rsa = "0.9.2"
 rand = "0.8.5"
-standback = "0.2.17" # required to fix a compilation error on a transient dependency
 clap = { version = "4.5.4", features = ["derive", "cargo", "env"] }
 clap_complete = "4.5.2"
 log = "0.4.19"
diff --git a/steamguard/Cargo.toml b/steamguard/Cargo.toml
index be51e74..36fad05 100644
--- a/steamguard/Cargo.toml
+++ b/steamguard/Cargo.toml
@@ -2,7 +2,7 @@
 name = "steamguard"
 version = "0.13.0"
 authors = ["Carson McManus <carson.mcmanus1@gmail.com>"]
-edition = "2018"
+edition = "2021"
 description = "Library for generating 2fa codes for Steam and responding to mobile confirmations."
 keywords = ["steam", "2fa", "steamguard", "authentication"]
 repository = "https://github.com/dyc3/steamguard-cli/tree/master/steamguard"
@@ -11,7 +11,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 anyhow = "^1.0"
 sha1 = "^0.10"
-base64 = "^0.21"
+base64 = "^0.22.1"
 reqwest = { version = "0.11", default-features = false, features = [
 	"blocking",
 	"json",
@@ -24,7 +24,6 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 rsa = "0.9.2"
 rand = "0.8.4"
-standback = "0.2.17" # required to fix a compilation error on a transient dependency
 cookie = "0.14"
 regex = "1"
 lazy_static = "1.4.0"