diff --git a/nimble.lock b/nimble.lock
index 409f625..76eb097 100644
--- a/nimble.lock
+++ b/nimble.lock
@@ -4,35 +4,35 @@
     "unittest2": {
       "version": "0.0.7",
       "vcsRevision": "b178f47527074964f76c395ad0dfc81cf118f379",
-      "url": "https://github.com/status-im/nim-unittest2.git",
+      "url": "https://github.com/status-im/nim-unittest2",
       "downloadMethod": "git",
       "dependencies": [],
       "checksums": {
         "sha1": "b6d4a5cbe28b43c166d6442ba6804aafd4abe368"
       }
     },
-    "testutils": {
-      "version": "0.5.0",
-      "vcsRevision": "dfc4c1b39f9ded9baf6365014de2b4bfb4dafc34",
-      "url": "https://github.com/status-im/nim-testutils",
+    "stew": {
+      "version": "0.1.0",
+      "vcsRevision": "d9400ddea08341a65102cffdb693d3a7131efef4",
+      "url": "https://github.com/status-im/nim-stew",
       "downloadMethod": "git",
       "dependencies": [
         "unittest2"
       ],
       "checksums": {
-        "sha1": "756d0757c4dd06a068f9d38c7f238576ba5ee897"
+        "sha1": "5130c5392bb6a1f27fdeb1608885097f621ee66c"
       }
     },
-    "stew": {
+    "zlib": {
       "version": "0.1.0",
-      "vcsRevision": "9958aac68a7613a3312fa96dd2f3b29caf17772e",
-      "url": "https://github.com/status-im/nim-stew",
+      "vcsRevision": "f34ca261efd90f118dc1647beefd2f7a69b05d93",
+      "url": "https://github.com/status-im/nim-zlib",
       "downloadMethod": "git",
       "dependencies": [
-        "unittest2"
+        "stew"
       ],
       "checksums": {
-        "sha1": "4eb2b0c4b0fe9817ee19202e8723d46c284f2875"
+        "sha1": "bffa9edcea9c879d827ec64a44d342dafd04ce7a"
       }
     },
     "nimcrypto": {
@@ -59,19 +59,19 @@
     },
     "bearssl": {
       "version": "0.2.0",
-      "vcsRevision": "99fcb3405c55b27cfffbf60f5368c55da7346f23",
+      "vcsRevision": "9372f27a25d0718d3527afad6cc936f6a853f86e",
       "url": "https://github.com/status-im/nim-bearssl",
       "downloadMethod": "git",
       "dependencies": [
         "unittest2"
       ],
       "checksums": {
-        "sha1": "919dc7c8b6f5e774932b211574eb9c5886f29cc2"
+        "sha1": "9e9b4c34bae17aa7218e7ce449128064ae5e1118"
       }
     },
     "httputils": {
       "version": "0.3.0",
-      "vcsRevision": "3b491a40c60aad9e8d3407443f46f62511e63b18",
+      "vcsRevision": "5065d2cf18dcb9812e25cc0e2c50eb357bde04cf",
       "url": "https://github.com/status-im/nim-http-utils",
       "downloadMethod": "git",
       "dependencies": [
@@ -79,7 +79,7 @@
         "unittest2"
       ],
       "checksums": {
-        "sha1": "1331f33585eda05d1e50385fa7871c3bf2a449d7"
+        "sha1": "5783702ff2b33be09a6ee25ff1aacf82c94c381b"
       }
     },
     "chronos": {
@@ -97,6 +97,18 @@
         "sha1": "5783067584ac6812eb64b8454ea6f9c97ff1262a"
       }
     },
+    "testutils": {
+      "version": "0.5.0",
+      "vcsRevision": "dfc4c1b39f9ded9baf6365014de2b4bfb4dafc34",
+      "url": "https://github.com/status-im/nim-testutils",
+      "downloadMethod": "git",
+      "dependencies": [
+        "unittest2"
+      ],
+      "checksums": {
+        "sha1": "756d0757c4dd06a068f9d38c7f238576ba5ee897"
+      }
+    },
     "faststreams": {
       "version": "0.3.0",
       "vcsRevision": "422971502bd641703bf78a27cb20429e77fcfb8b",
@@ -111,8 +123,8 @@
       }
     },
     "serialization": {
-      "version": "0.2.0",
-      "vcsRevision": "384eb2561ee755446cff512a8e057325848b86a7",
+      "version": "0.2.2",
+      "vcsRevision": "4d541ec43454809904fc4c3c0a7436410ad597d2",
       "url": "https://github.com/status-im/nim-serialization",
       "downloadMethod": "git",
       "dependencies": [
@@ -121,20 +133,20 @@
         "stew"
       ],
       "checksums": {
-        "sha1": "feef734e39589686712b052286ed5c947cbaa380"
+        "sha1": "1dcdb29f17d0aff295e7e57edf530b1e16fb6c59"
       }
     },
     "json_serialization": {
-      "version": "0.1.5",
-      "vcsRevision": "e32e8ad916ea12b8d356b2d691c4e2d8b8fea45d",
-      "url": "https://github.com/status-im/nim-json-serialization",
+      "version": "0.2.4",
+      "vcsRevision": "d9394dc7286064902d825bbc1203d03d7218633a",
+      "url": "https://github.com/status-im/nim-json-serialization/",
       "downloadMethod": "git",
       "dependencies": [
         "serialization",
         "stew"
       ],
       "checksums": {
-        "sha1": "bc456c06a9376c56000674c0c425d5d6585dda43"
+        "sha1": "74e9d9c8af0431acab7f29a4eb8ddb3d5a7ec74a"
       }
     },
     "chronicles": {
@@ -160,18 +172,6 @@
         "sha1": "5bf102761f7d33fd3a421db23d476794398afb07"
       }
     },
-    "zlib": {
-      "version": "0.1.0",
-      "vcsRevision": "f34ca261efd90f118dc1647beefd2f7a69b05d93",
-      "url": "https://github.com/status-im/nim-zlib",
-      "downloadMethod": "git",
-      "dependencies": [
-        "stew"
-      ],
-      "checksums": {
-        "sha1": "bffa9edcea9c879d827ec64a44d342dafd04ce7a"
-      }
-    },
     "websock": {
       "version": "0.1.0",
       "vcsRevision": "2c3ae3137f3c9cb48134285bd4a47186fa51f0e8",
@@ -231,16 +231,6 @@
       "checksums": {
         "sha1": "223051771677a01f8cb38c15552c4f4fc9893ea4"
       }
-    },
-    "nim": {
-      "version": "2.1.1",
-      "vcsRevision": "940b1607b8459b4b7b7e20d316bec95c8de85809",
-      "url": "https://github.com/nim-lang/Nim.git",
-      "downloadMethod": "git",
-      "dependencies": [],
-      "checksums": {
-        "sha1": "ee369ca2ef4fd48e55732c09c5f8b67a4a22daa4"
-      }
     }
   },
   "tasks": {}
diff --git a/nimlangserver.nim b/nimlangserver.nim
index 8cefa35..ce060f2 100644
--- a/nimlangserver.nim
+++ b/nimlangserver.nim
@@ -3,7 +3,7 @@ import macros, strformat, faststreams/async_backend,
   json_rpc/streamconnection, os, sugar, sequtils, hashes, osproc,
   suggestapi, protocol/enums, protocol/types, with, tables, strutils, sets,
   ./utils, ./pipes, chronicles, std/re, uri, "$nim/compiler/pathutils",
-  procmonitor, std/strscans, parsecfg
+  procmonitor, std/strscans, parsecfg, json_serialization, serialization/formats
 
 
 const
@@ -72,6 +72,9 @@ type
     Cfg,
     Nimble
 
+createJsonFlavor(LSPFlavour, omitOptionalFields = true)
+Option.useDefaultSerializationIn LSPFlavour
+
 macro `%*`*(t: untyped, inputStream: untyped): untyped =
   result = newCall(bindSym("to", brOpen),
                    newCall(bindSym("%*", brOpen), inputStream), t)
diff --git a/nimlangserver.nimble b/nimlangserver.nimble
index 4473735..10b01e3 100644
--- a/nimlangserver.nimble
+++ b/nimlangserver.nimble
@@ -12,7 +12,10 @@ requires "nim >= 1.0.0",
          "https://github.com/nickysn/asynctools#fixes_for_nimlangserver",
          "https://github.com/yyoncho/nim-json-rpc#notif-changes",
          "with",
-         "chronicles"
+         "chronicles",
+         "serialization",
+         "json_serialization"
+
 
 --path:"."