diff --git a/lib/net/ssh/authentication/ed25519.rb b/lib/net/ssh/authentication/ed25519.rb
index c252e2bac..7f33d7b8b 100644
--- a/lib/net/ssh/authentication/ed25519.rb
+++ b/lib/net/ssh/authentication/ed25519.rb
@@ -3,8 +3,6 @@
 
 require 'ed25519'
 
-require 'base64'
-
 require 'net/ssh/transport/cipher_factory'
 require 'net/ssh/authentication/pub_key_fingerprint'
 require 'bcrypt_pbkdf' unless RUBY_PLATFORM == "java"
diff --git a/lib/net/ssh/known_hosts.rb b/lib/net/ssh/known_hosts.rb
index a69364fe2..13b24a392 100644
--- a/lib/net/ssh/known_hosts.rb
+++ b/lib/net/ssh/known_hosts.rb
@@ -1,6 +1,5 @@
 require 'strscan'
 require 'openssl'
-require 'base64'
 require 'delegate'
 require 'net/ssh/buffer'
 require 'net/ssh/authentication/ed25519_loader'