diff --git a/src/main/kotlin/dev/usbharu/hideout/plugins/ActivityPub.kt b/src/main/kotlin/dev/usbharu/hideout/plugins/ActivityPub.kt
index a11146ae..79026295 100644
--- a/src/main/kotlin/dev/usbharu/hideout/plugins/ActivityPub.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/plugins/ActivityPub.kt
@@ -164,7 +164,7 @@ class KtorKeyMap(private val userAuthRepository: IUserAuthService) : KeyMap {
         val publicBytes = Base64.getDecoder().decode(
             userAuthRepository.findByUsername(
                 username
-            ).privateKey?.replace("-----BEGIN RSA PRIVATE KEY-----", "")?.replace("-----END RSA PRIVATE KEY-----", "")
+            ).privateKey?.replace("-----BEGIN PRIVATE KEY-----", "")?.replace("-----END PRIVATE KEY-----", "")
                 ?.replace("\n", "")
         )
         val x509EncodedKeySpec = PKCS8EncodedKeySpec(publicBytes)
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/UserAuthService.kt b/src/main/kotlin/dev/usbharu/hideout/service/UserAuthService.kt
index 35812420..72ae5ae4 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/UserAuthService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/UserAuthService.kt
@@ -91,13 +91,13 @@ class UserAuthService(
 }
 
 public fun PublicKey.toPem(): String {
-    return "-----BEGIN RSA PUBLIC KEY-----" +
+    return "-----BEGIN PUBLIC KEY-----" +
             Base64.getEncoder().encodeToString(encoded).chunked(64).joinToString("\n") +
-            "-----END RSA PUBLIC KEY-----"
+            "-----END PUBLIC KEY-----"
 }
 
 public fun PrivateKey.toPem(): String {
-    return "-----BEGIN RSA PRIVATE KEY-----" +
+    return "-----BEGIN PRIVATE KEY-----" +
             Base64.getEncoder().encodeToString(encoded).chunked(64).joinToString("\n") +
-            "-----END RSA PRIVATE KEY-----"
+            "-----END PRIVATE KEY-----"
 }