diff --git a/pandoc-server.cabal b/pandoc-server.cabal
--- a/pandoc-server.cabal
+++ b/pandoc-server.cabal
@@ -1,6 +1,6 @@
 cabal-version:   2.4
 name:            pandoc-server
-version:         0.1
+version:         0.1.0.1
 build-type:      Simple
 license:         GPL-2.0-or-later
 license-file:    COPYING.md
@@ -59,7 +59,7 @@
                  data-default          >= 0.4      && < 0.8,
                  text                  >= 1.1.1.0  && < 2.1,
                  unicode-collation     >= 0.1.1    && < 0.2,
-                 servant-server        >= 0.19     && < 0.20,
+                 servant-server        >= 0.19     && < 0.21,
                  skylighting           >= 0.13     && < 0.14,
                  wai                   >= 3.2      && < 3.3,
                  wai-cors              >= 0.2.7    && < 0.3