diff --git a/debian/changelog b/debian/changelog
index d24c57a7d..5668c41c5 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+nextepc (0.5.2) unstable; urgency=medium
+
+  * Bug Fixed
+
+ -- Sukchan Lee <acetcom@gmail.com>  Sun, 11 Aug 2019 11:17:35 +0000
+
 nextepc (0.5.1~xenial) xenial; urgency=medium
 
   * SMSoSG Supported 
diff --git a/debian/control b/debian/control
index 0f352012c..e63660a99 100644
--- a/debian/control
+++ b/debian/control
@@ -12,7 +12,7 @@ Build-Depends: debhelper (>= 9),
                libtool,
                flex,
                bison,
-               libogslib-dev,
+               libogslib-dev (>= 1.2.1),
                libgnutls28-dev,
                libgcrypt-dev,
                libssl-dev,