diff --git a/gnupg2.spec b/gnupg2.spec
index 03f0046fa86ba247f7155b495ccbd1a52a0e5e6e..2e524a115e5e5de0c09be199f4562484f924f629 100644
--- a/gnupg2.spec
+++ b/gnupg2.spec
@@ -1,6 +1,6 @@
 Name: gnupg2
 Version: 2.2.21
-Release: 5
+Release: 6
 Summary: Utility for secure communication and data storage
 
 License: GPLv3+
@@ -28,6 +28,8 @@ BuildRequires: libgpg-error-devel >= 1.31
 BuildRequires: libgcrypt-devel >= 1.7.0
 BuildRequires: libksba-devel >= 1.3.0
 BuildRequires: libassuan-devel >= 2.1.0
+# for TLS support
+BuildRequires: gnutls-devel
 
 Requires: libgcrypt >= 1.7.0
 Requires: libgpg-error >= 1.31
@@ -116,6 +118,9 @@ make check
 
 
 %changelog
+* Wed Apr 19 2023 yixiangzhike <yixiangzhike007@163.com> - 2.2.21-6
+- add BuildRequires:gnutls-devel to support TLS
+
 * Mon Aug 15 2022 yixiangzhike <yixiangzhike007@163.com> - 2.2.21-5
 - fix CVE-2022-34903