diff --git a/paket.dependencies b/paket.dependencies
index 8f91bff44..caabd44a8 100644
--- a/paket.dependencies
+++ b/paket.dependencies
@@ -53,7 +53,7 @@ nuget Expecto.Diff
 nuget YoloDev.Expecto.TestSdk
 nuget AltCover
 nuget GitHubActionsTestLogger
-nuget Ionide.LanguageServerProtocol >= 0.4.18
+nuget Ionide.LanguageServerProtocol >= 0.4.19
 nuget Microsoft.Extensions.Caching.Memory
 nuget OpenTelemetry.Api >= 1.3.2
 nuget OpenTelemetry.Exporter.OpenTelemetryProtocol >= 1.3.2 # 1.4 bumps to 7.0 versions of System.Diagnostics libs, so can't use it
diff --git a/paket.lock b/paket.lock
index 888bf3b42..c000ebfbb 100644
--- a/paket.lock
+++ b/paket.lock
@@ -120,7 +120,7 @@ NUGET
       System.Collections.Immutable (>= 5.0)
       System.Reflection.Metadata (>= 5.0)
     Ionide.KeepAChangelog.Tasks (0.1.8) - copy_local: true
-    Ionide.LanguageServerProtocol (0.4.18)
+    Ionide.LanguageServerProtocol (0.4.19)
       FSharp.Core (>= 6.0)
       Newtonsoft.Json (>= 13.0.1)
       StreamJsonRpc (>= 2.10.44)
diff --git a/src/FsAutoComplete/LspServers/AdaptiveFSharpLspServer.fs b/src/FsAutoComplete/LspServers/AdaptiveFSharpLspServer.fs
index 170cff38f..ebba809ec 100644
--- a/src/FsAutoComplete/LspServers/AdaptiveFSharpLspServer.fs
+++ b/src/FsAutoComplete/LspServers/AdaptiveFSharpLspServer.fs
@@ -3098,6 +3098,7 @@ module AdaptiveFSharpLspServer =
       | :? LocalRpcException -> Some()
       | :? TaskCanceledException -> Some()
       | :? OperationCanceledException -> Some()
+      | :? Newtonsoft.Json.JsonSerializationException -> Some()
       | :? System.AggregateException as aex ->
         if aex.InnerExceptions.Count = 1 then
           (|HandleableException|_|) aex.InnerException
@@ -3107,11 +3108,43 @@ module AdaptiveFSharpLspServer =
 
     let strategy = StreamJsonRpcTracingStrategy(Tracing.fsacActivitySource)
 
+    let (|Flatten|_|) (e: exn) =
+      match e with
+      | :? AggregateException as aex ->
+        let aex = aex.Flatten()
+
+        if aex.InnerExceptions.Count = 1 then
+          Some aex.InnerException
+        else
+          Some e
+      | _ -> Some e
+
+    let strategy = StreamJsonRpcTracingStrategy(Tracing.fsacActivitySource)
+
     { new JsonRpc(handler, ActivityTracingStrategy = strategy) with
         member this.IsFatalException(ex: Exception) =
           match ex with
           | HandleableException -> false
-          | _ -> true }
+          | _ -> true
+
+        member this.CreateErrorDetails(request: Protocol.JsonRpcRequest, ex: Exception) =
+          let isSerializable = this.ExceptionStrategy = ExceptionProcessing.ISerializable
+
+          match ex with
+          | Flatten(:? Newtonsoft.Json.JsonSerializationException as ex) ->
+
+            let data: obj = if isSerializable then ex else Protocol.CommonErrorData(ex)
+
+            Protocol.JsonRpcError.ErrorDetail(
+              Code = Protocol.JsonRpcErrorCode.ParseError,
+              Message = ex.Message,
+              Data = data
+            )
+          | _ -> base.CreateErrorDetails(request, ex)
+
+    }
+
+
 
   let startCore toolsPath workspaceLoaderFactory sourceTextFactory =
     use input = Console.OpenStandardInput()