diff --git a/check-version.sh b/check-version.sh
new file mode 100644
index 0000000..185cf79
--- /dev/null
+++ b/check-version.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+URL="ftp://ftp.gnu.org/gnu/libtasn1/"
+
+# Get version number from FTP server
+VERSION=$(curl -s --list-only "$URL" | grep -E '^libtasn1-[0-9]{1,}\.[0-9]{1,}(\.[0-9]{1,})?.tar.gz$' | cut -d '-' -f2 | sort -V | tail -n1)
+
+# Remove '.tar.gz' suffix from VERSION variable
+VERSION=${VERSION//.tar.gz/}
+
+echo "$VERSION"
diff --git a/pkg.info b/pkg.info
index 0ae1509..3e601f5 100644
--- a/pkg.info
+++ b/pkg.info
@@ -1,7 +1,6 @@
 name: libtasn1
 description: The ASN.1 library used in GNUTLS
-version: 4.19.0
-revision: 2
+version: 4.20.0
 url: https://www.gnu.org/software/libtasn1/
 license: GFDL1.3-or-later,GPL3-or-later,LGPL2.1-or-later
 architecture: any