diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# log-elasticsearch-0.12.0.0 (2021-06-09)
+* Stop putting `insertion_time` and `insertion_order` in ElasticSearch.
+
 # log-elasticsearch-0.11.0.0 (2020-08-24)
 * Drop dependency on bloodhound
 * Unify V1 and V5 specific modules
diff --git a/log-elasticsearch.cabal b/log-elasticsearch.cabal
--- a/log-elasticsearch.cabal
+++ b/log-elasticsearch.cabal
@@ -1,5 +1,5 @@
 name:                log-elasticsearch
-version:             0.11.0.0
+version:             0.12.0.0
 synopsis:            Structured logging solution (Elasticsearch back end)
 
 description:         Elasticsearch back end for the 'log' library suite.
@@ -18,7 +18,8 @@
 build-type:          Simple
 cabal-version:       >=1.10
 extra-source-files:  CHANGELOG.md, README.md
-tested-with:         GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2
+tested-with:         GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.4
+                      || ==9.0.1
 
 Source-repository head
   Type:     git
@@ -29,15 +30,15 @@
                        Log.Backend.ElasticSearch.Internal
                        Log.Backend.ElasticSearch.Lens
   build-depends:       base >= 4.8 && <5,
-                       log-base >= 0.7,
                        aeson >=1.0.0.0,
                        aeson-pretty >=0.8.2,
-                       bytestring,
                        base64-bytestring,
+                       bytestring,
                        deepseq,
                        http-client,
                        http-client-tls,
                        http-types,
+                       log-base >= 0.10 && <0.11,
                        network-uri,
                        semigroups,
                        text,
diff --git a/src/Log/Backend/ElasticSearch.hs b/src/Log/Backend/ElasticSearch.hs
--- a/src/Log/Backend/ElasticSearch.hs
+++ b/src/Log/Backend/ElasticSearch.hs
@@ -25,7 +25,6 @@
 import Data.Maybe
 import Data.Semigroup
 import Data.Time
-import Data.Word
 import Log
 import Log.Internal.Logger
 import Network.HTTP.Client
@@ -99,7 +98,7 @@
           unless (isSuccess reply) $ do
             printEsError "error while creating index" $ responseBody reply
         writeIORef indexRef index
-      let jsonMsgs = V.fromList $ map (toJsonMsg now) $ zip [1..] msgs
+      let jsonMsgs = V.fromList $ map toJsonMsg msgs
       reply <- responseBody <$> bulkIndex version env esConf index jsonMsgs
       -- Try to parse parts of reply to get information about log messages that
       -- failed to be inserted for some reason.
@@ -195,13 +194,8 @@
                . T.toLazyText
                . encodePrettyToTextBuilder' defConfig { confIndent = Spaces 2 }
 
-    toJsonMsg :: UTCTime -> (Word32, LogMessage) -> H.HashMap T.Text Value
-    toJsonMsg now (n, msg) = H.union jMsg $ H.fromList
-      [ ("insertion_order", toJSON n)
-      , ("insertion_time",  toJSON now)
-      ]
-      where
-        Object jMsg = toJSON msg
+    toJsonMsg :: LogMessage -> H.HashMap T.Text Value
+    toJsonMsg msg = let Object jMsg = toJSON msg in jMsg
 
 ----------------------------------------
 
diff --git a/src/Log/Backend/ElasticSearch/Internal.hs b/src/Log/Backend/ElasticSearch/Internal.hs
--- a/src/Log/Backend/ElasticSearch/Internal.hs
+++ b/src/Log/Backend/ElasticSearch/Internal.hs
@@ -135,14 +135,7 @@
   where
     logsMapping = object
       [ "properties" .= object
-        [ "insertion_order" .= object
-          [ "type" .= ("integer"::T.Text)
-          ]
-        , "insertion_time" .= object
-          [ "type"   .= ("date"::T.Text)
-          , "format" .= ("date_time"::T.Text)
-          ]
-        , "time" .= object
+        [ "time" .= object
           [ "type"   .= ("date"::T.Text)
           , "format" .= ("date_time"::T.Text)
           ]