diff --git a/debian/changelog b/debian/changelog
index ad3f67a..054f013 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -3,6 +3,8 @@
   * Bump debhelper from old 9 to 12.
   * Set debhelper-compat version in Build-Depends.
   * Set upstream metadata fields: Repository, Repository-Browse.
+  * Remove constraints unnecessary since buster:
+    + Build-Depends: Drop versioned constraint on ragel.
 
  -- Debian Janitor <janitor@jelmer.uk>  Thu, 21 Nov 2019 03:29:25 +0000
 
diff --git a/debian/control b/debian/control
index 629c1aa..7264e55 100644
--- a/debian/control
+++ b/debian/control
@@ -3,7 +3,7 @@
 Priority: optional
 Maintainer: Sylvestre Ledru <sylvestre@debian.org>
 Build-Depends: debhelper-compat (= 12), libpcre3-dev, gem2deb, rake,
- ragel (>= 6.3), ruby-diff-lcs, doxygen, gperf, file, libmagic-dev,
+ ragel, ruby-diff-lcs, doxygen, gperf, file, libmagic-dev,
  swig
 Standards-Version: 4.1.3
 Homepage: https://github.com/blackducksoftware/ohcount