diff --git a/package.json b/package.json
index 3ce49cf4..593cf3b8 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
 		"@mui/icons-material": "^5.4.4",
 		"@mui/lab": "5.0.0-alpha.114",
 		"@mui/material": "^5.5.0",
-		"@peculiar/x509": "1.12.3",
+		"@peculiar/x509": "1.8.4",
 		"js-yaml": "^4.1.0",
 		"moment": "^2.30.1",
 		"next": "^14.2.15",
diff --git a/src/modules/x509/extensions.ts b/src/modules/x509/extensions.ts
index 3dc26edd..a6814ecf 100644
--- a/src/modules/x509/extensions.ts
+++ b/src/modules/x509/extensions.ts
@@ -63,9 +63,7 @@ export const EXTENSIONS_CONFIG: Record<string, ExtensionConfig> = {
 	"2.5.29.17": {
 		name: "Subject Alternative Name",
 		toJSON(rawExtension: Extension) {
-			return new SubjectAlternativeNameExtension(
-				rawExtension.rawData,
-			).toTextObject();
+			return new SubjectAlternativeNameExtension(rawExtension.rawData).toJSON();
 		},
 	},
 	"2.5.29.19": {