diff --git a/package/libtasn1/libtasn1.hash b/package/libtasn1/libtasn1.hash
index b9c9dad131..f099b7bfd6 100644
--- a/package/libtasn1/libtasn1.hash
+++ b/package/libtasn1/libtasn1.hash
@@ -1,6 +1,6 @@
 # Locally calculated after checking pgp signature
-# https://ftp.gnu.org/gnu/libtasn1/libtasn1-4.20.0.tar.gz.sig
-sha256  92e0e3bd4c02d4aeee76036b2ddd83f0c732ba4cda5cb71d583272b23587a76c  libtasn1-4.20.0.tar.gz
+# https://ftp.gnu.org/gnu/libtasn1/libtasn1-4.21.0.tar.gz.sig
+sha256  1d8a444a223cc5464240777346e125de51d8e6abf0b8bac742ac84609167dc87  libtasn1-4.21.0.tar.gz
 # Locally calculated
 sha256  990ef6a87f29a9d3db33698b94ea026a5d0f81bbf9806333d73699a250b7e5d6  README.md
 sha256  3972dc9744f6499f0f9b2dbf76696f2ae7ad8af9b23dde66d6af86c9dfb36986  COPYING
diff --git a/package/libtasn1/libtasn1.mk b/package/libtasn1/libtasn1.mk
index 3154e500f1..9a853e2312 100644
--- a/package/libtasn1/libtasn1.mk
+++ b/package/libtasn1/libtasn1.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBTASN1_VERSION = 4.20.0
+LIBTASN1_VERSION = 4.21.0
 LIBTASN1_SITE = $(BR2_GNU_MIRROR)/libtasn1
 LIBTASN1_DEPENDENCIES = host-bison host-pkgconf
 LIBTASN1_LICENSE = GPL-3.0+ (tests, tools), LGPL-2.1+ (library)