diff --git a/Cargo.lock b/Cargo.lock
index a16d441..9101338 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -73,12 +73,6 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
-[[package]]
-name = "base64"
-version = "0.20.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ea22880d78093b0cbe17c89f64a7d457941e65759157ec6cb31a31d652b05e5"
-
 [[package]]
 name = "base64"
 version = "0.21.0"
@@ -784,7 +778,7 @@ dependencies = [
 name = "moproxy"
 version = "0.3.12"
 dependencies = [
- "base64 0.20.0",
+ "base64 0.21.0",
  "bytes",
  "clap",
  "futures-core",
diff --git a/Cargo.toml b/Cargo.toml
index 20b4d53..b589e67 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -43,7 +43,7 @@ bytes = "1"
 zip = { version = "0.6", optional = true, default-features = false, features = [
     "deflate"
 ] }
-base64 = "0.20"
+base64 = "0.21"
 
 [target.'cfg(target_os = "linux")'.dependencies]
 libc = "0.2"
diff --git a/src/proxy/http.rs b/src/proxy/http.rs
index b769664..3ae8b02 100644
--- a/src/proxy/http.rs
+++ b/src/proxy/http.rs
@@ -1,3 +1,4 @@
+use base64::prelude::{Engine, BASE64_STANDARD};
 use httparse::{Response, Status, EMPTY_HEADER};
 use std::io::{self, ErrorKind};
 use std::net::IpAddr;
@@ -110,7 +111,7 @@ fn build_request(addr: &Destination, user_pass_auth: &Option<UserPassAuthCredent
             username = user_pass_auth.username,
             password = user_pass_auth.password
         );
-        let basic_auth = base64::encode(&auth);
+        let basic_auth = BASE64_STANDARD.encode(&auth);
         format!(
             "CONNECT {host} HTTP/1.1\r\n\
              Host: {host}\r\n\