diff --git a/Echo.hs b/Echo.hs
index eff2102..397fb99 100644
--- a/Echo.hs
+++ b/Echo.hs
@@ -11,7 +11,9 @@ module Echo where
 
 import Control.Concurrent.MVar
 import Control.Monad.Trans      (MonadIO(..))
+#if !MIN_VERSION_time(1,5,0)
 import System.Locale
+#endif
 import Data.Time
 import Language.Haskell.TH
 import Language.Haskell.TH.Lift
diff --git a/stackage-server.cabal b/stackage-server.cabal
index 49207f2..656c7a1 100644
--- a/stackage-server.cabal
+++ b/stackage-server.cabal
@@ -98,7 +98,7 @@ library
                   , blaze-markup                  >= 0.6
                   , byteable
                   , bytestring                    >= 0.9
-                  , classy-prelude-yesod          >= 0.9.2
+                  , classy-prelude-yesod          >= 0.9.2 && < 0.12
                   , conduit                       >= 1.0
                   , conduit-extra
                   , cryptohash
@@ -133,13 +133,13 @@ library
                   , wai-extra                     >= 2.1
                   , wai-logger                    >= 2.1
                   , warp                          >= 2.1
-                  , xml-conduit
+                  , xml-conduit < 1.3
                   , yaml                          >= 0.8
                   , yesod                         >= 1.2.5
                   , yesod-auth                    >= 1.3
                   , yesod-core                    >= 1.2.19
                   , yesod-form                    >= 1.3.14
-                  , yesod-static                  >= 1.2
+                  , yesod-static                  >= 1.2 && < 1.5
                   , zlib
                   , unordered-containers
                   , hashable
@@ -164,7 +164,7 @@ library
                  , deepseq
                  , deepseq-generics
                  , auto-update
-                 , stackage-types >= 1.0.1
+                 , stackage-types >= 1.0.1.1
                  , stackage-build-plan >= 0.1.1
                  , yesod-sitemap
                  , streaming-commons