diff --git a/ziptastic-client/ziptastic-client.cabal b/ziptastic-client/ziptastic-client.cabal
index 06c1e3c..6ee4028 100644
--- a/ziptastic-client/ziptastic-client.cabal
+++ b/ziptastic-client/ziptastic-client.cabal
@@ -31,8 +31,8 @@ library
     , base-compat           == 0.9.*
     , http-client
     , iso3166-country-codes
-    , servant               >= 0.9 && < 0.12
-    , servant-client        >= 0.9 && < 0.12
+    , servant               >= 0.9 && < 0.13
+    , servant-client        >= 0.9 && < 0.13
     , text
     , ziptastic-core        >= 0.2.0.1 && < 0.2.1
   default-language: Haskell2010
diff --git a/ziptastic-core/ziptastic-core.cabal b/ziptastic-core/ziptastic-core.cabal
index 64a439d..d2b2a58 100644
--- a/ziptastic-core/ziptastic-core.cabal
+++ b/ziptastic-core/ziptastic-core.cabal
@@ -35,7 +35,7 @@ library
     , bytestring            == 0.10.*
     , http-api-data         == 0.3.*
     , iso3166-country-codes >= 0.20140203.8
-    , servant               >= 0.9 && < 0.12
+    , servant               >= 0.9 && < 0.13
     , text                  >= 0.11
     , tz                    == 0.1.*
   default-language: Haskell2010