diff --git a/COPYING.md b/COPYING.md
--- a/COPYING.md
+++ b/COPYING.md
@@ -3,8 +3,8 @@
 Version 2, June 1991
 
     Copyright (C) 1989, 1991 Free Software Foundation, Inc.  
-    51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
-
+    <https://fsf.org/>
+    
     Everyone is permitted to copy and distribute verbatim copies
     of this license document, but changing it is not allowed.
 
@@ -317,10 +317,9 @@
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+    
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, see <https://www.gnu.org/licenses/>.
 
 Also add information on how to contact you by electronic and paper
 mail.
diff --git a/pandoc-lua-engine.cabal b/pandoc-lua-engine.cabal
--- a/pandoc-lua-engine.cabal
+++ b/pandoc-lua-engine.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.4
 name:                pandoc-lua-engine
-version:             0.5
+version:             0.5.0.1
 build-type:          Simple
 license:             GPL-2.0-or-later
 license-file:        COPYING.md
@@ -111,7 +111,7 @@
   build-depends:       aeson
                      , bytestring            >= 0.9     && < 0.13
                      , crypton               >= 0.30    && < 1.1
-                     , citeproc              >= 0.8     && < 0.11
+                     , citeproc              >= 0.8     && < 0.12
                      , containers            >= 0.6.0.1 && < 0.9
                      , data-default          >= 0.4     && < 0.9
                      , doclayout             >= 0.5     && < 0.6