diff --git a/internal/auth/auth.go b/internal/auth/auth.go
index c1df7b9..531a060 100644
--- a/internal/auth/auth.go
+++ b/internal/auth/auth.go
@@ -86,8 +86,8 @@ func (s *Service) Login(pubkey, signature, eventJSON string) (string, error) {
 			}
 		}
 
-		// Compare with the provided pubkey
-		if allowedHexPubkey != pubkey {
+		// Compare with the provided pubkey (case-insensitive comparison)
+		if strings.ToLower(allowedHexPubkey) != strings.ToLower(pubkey) {
 			s.logger.Warn("Login attempt from non-whitelisted pubkey",
 				zap.String("attempt_pubkey", pubkey),
 				zap.String("allowed_pubkey", allowedHexPubkey),
@@ -166,8 +166,8 @@ func (s *Service) VerifyToken(tokenStr string) (string, error) {
 			}
 		}
 
-		// Compare with the token's pubkey
-		if allowedHexPubkey != token.Pubkey {
+		// Compare with the token's pubkey (case-insensitive comparison)
+		if strings.ToLower(allowedHexPubkey) != strings.ToLower(token.Pubkey) {
 			s.logger.Warn("Token verification from non-whitelisted pubkey",
 				zap.String("token_pubkey", token.Pubkey),
 				zap.String("allowed_pubkey", allowedHexPubkey))
diff --git a/internal/utils/nip-19.go b/internal/utils/nip-19.go
index 4436175..bc76a56 100644
--- a/internal/utils/nip-19.go
+++ b/internal/utils/nip-19.go
@@ -2,6 +2,8 @@
 package utils
 
 import (
+    "strings"
+    
     "github.com/nbd-wtf/go-nostr/nip19"
 )
 
@@ -40,6 +42,6 @@ func DecodeNpub(npub string) (string, error) {
         return "", err
     }
 
-    // Return the hex pubkey
-    return data.(string), nil
+    // Return the hex pubkey (ensure lowercase for consistent comparisons)
+    return strings.ToLower(data.(string)), nil
 }
\ No newline at end of file