diff --git a/Cargo.lock b/Cargo.lock
index e48b3b63..5db759f7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -269,9 +269,9 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "base64"
-version = "0.21.3"
+version = "0.21.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "414dcefbc63d77c526a76b3afcf6fbb9b5e2791c19c3aa2297733208750c6e53"
+checksum = "35636a1494ede3b646cc98f74f8e62c773a38a659ebc777a2cf26b9b74171df9"
 
 [[package]]
 name = "base64ct"
@@ -442,6 +442,7 @@ name = "certifier"
 version = "0.1.0"
 dependencies = [
  "axum",
+ "base64 0.21.5",
  "clap 4.4.7",
  "config",
  "ed25519-dalek",
@@ -1450,7 +1451,7 @@ dependencies = [
 name = "initializer"
 version = "0.5.2"
 dependencies = [
- "base64 0.21.3",
+ "base64 0.21.5",
  "clap 4.4.7",
  "env_logger",
  "eyre",
@@ -1931,7 +1932,7 @@ version = "3.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3163d2912b7c3b52d651a055f2c7eec9ba5cd22d26ef75b8dd3a59980b185923"
 dependencies = [
- "base64 0.21.3",
+ "base64 0.21.5",
  "serde",
 ]
 
@@ -2643,7 +2644,7 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2d3987094b1d07b653b7dfdc3f70ce9a1da9c51ac18c1b06b662e4f9a0e9f4b2"
 dependencies = [
- "base64 0.21.3",
+ "base64 0.21.5",
 ]
 
 [[package]]
@@ -2826,7 +2827,7 @@ version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "64cd236ccc1b7a29e7e2739f27c0b2dd199804abc4290e32f59f3b68d6405c23"
 dependencies = [
- "base64 0.21.3",
+ "base64 0.21.5",
  "chrono",
  "hex",
  "indexmap 1.9.3",
@@ -3279,7 +3280,7 @@ dependencies = [
  "async-stream",
  "async-trait",
  "axum",
- "base64 0.21.3",
+ "base64 0.21.5",
  "bytes",
  "h2",
  "http",
diff --git a/certifier/Cargo.toml b/certifier/Cargo.toml
index 55bbe582..ceb2a185 100644
--- a/certifier/Cargo.toml
+++ b/certifier/Cargo.toml
@@ -24,3 +24,4 @@ tracing-log = "0.2.0"
 tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
 rand = "0.8.5"
 serde_json = "1.0.108"
+base64 = "0.21.5"
diff --git a/certifier/src/main.rs b/certifier/src/main.rs
index 2541483a..ee504adf 100644
--- a/certifier/src/main.rs
+++ b/certifier/src/main.rs
@@ -1,5 +1,6 @@
 use std::path::PathBuf;
 
+use base64::{engine::general_purpose, Engine as _};
 use clap::{arg, Parser, Subcommand};
 use ed25519_dalek::SigningKey;
 use tracing::info;
@@ -66,12 +67,9 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     let config = certifier::configuration::get_configuration(&args.config_path)?;
     let signer = SigningKey::from_bytes(&config.signing_key);
+    let pubkey_b64 = general_purpose::STANDARD.encode(signer.verifying_key().as_bytes());
 
-    info!(
-        "listening on: {:?}, pubkey: {:?}",
-        config.listen,
-        signer.verifying_key()
-    );
+    info!("listening on: {:?}, pubkey: {}", config.listen, pubkey_b64,);
     info!("using POST configuration: {:?}", config.post_cfg);
 
     let app: axum::Router = certifier::certifier::new(config.post_cfg, signer);