diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,11 @@
+## 2.6
+
+Compatibility for backend-specific upsert functionality.
+A lucky contributor could try to add upsert to the sqlite backend now.
+It would definitely be tricky though because sqlite does not really have this
+feature.
+http://stackoverflow.com/questions/418898/sqlite-upsert-not-insert-or-replace/4330694#4330694
+
 ## 2.5.0.2
 
 * Fix lstat workaround for https://ghc.haskell.org/trac/ghc/ticket/7072 on Mac OS X [#564](https://github.com/yesodweb/persistent/pull/564)
diff --git a/Database/Persist/Sqlite.hs b/Database/Persist/Sqlite.hs
--- a/Database/Persist/Sqlite.hs
+++ b/Database/Persist/Sqlite.hs
@@ -109,6 +109,7 @@
         { connPrepare = prepare' conn
         , connStmtMap = smap
         , connInsertSql = insertSql'
+        , connUpsertSql = Nothing
         , connInsertManySql = Nothing
         , connClose = Sqlite.close conn
         , connMigrateSql = migrate'
diff --git a/persistent-sqlite.cabal b/persistent-sqlite.cabal
--- a/persistent-sqlite.cabal
+++ b/persistent-sqlite.cabal
@@ -1,5 +1,5 @@
 name:            persistent-sqlite
-version:         2.5.0.2
+version:         2.6
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>
@@ -25,7 +25,7 @@
     build-depends:   base                    >= 4.6         && < 5
                    , bytestring              >= 0.9.1
                    , transformers            >= 0.2.1
-                   , persistent              >= 2.5         && < 3
+                   , persistent              >= 2.6         && < 3
                    , monad-control           >= 0.2
                    , containers              >= 0.2
                    , text                    >= 0.7