diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
index 57cf164..a1485cc 100644
--- a/.config/dotnet-tools.json
+++ b/.config/dotnet-tools.json
@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "fable": {
-      "version": "5.5.0",
+      "version": "5.6.0",
       "commands": [
         "fable"
       ],
diff --git a/src/Bridge/Services/Clients/BranchClient.fs b/src/Bridge/Services/Clients/BranchClient.fs
index 95b51bf..29e694d 100644
--- a/src/Bridge/Services/Clients/BranchClient.fs
+++ b/src/Bridge/Services/Clients/BranchClient.fs
@@ -17,8 +17,9 @@ type BranchClient(transport: IHttpTransport) =
                   for id in ids do
                       yield "id", (id: UrlPart)
               | _ -> ()
-              if not (String.IsNullOrEmpty(queryParams.search)) then
-                  yield "search", (queryParams.search: UrlPart)
+              match Option.ofObj queryParams.search with
+              | Some search when not (String.IsNullOrEmpty(search)) -> yield "search", (search: UrlPart)
+              | _ -> ()
               if queryParams.pageNumber.HasValue then
                   yield "pageNumber", (queryParams.pageNumber.Value: UrlPart)
               if queryParams.pageSize.HasValue then
diff --git a/src/Bridge/Services/Clients/DepartmentClient.fs b/src/Bridge/Services/Clients/DepartmentClient.fs
index 4d3132c..58da162 100644
--- a/src/Bridge/Services/Clients/DepartmentClient.fs
+++ b/src/Bridge/Services/Clients/DepartmentClient.fs
@@ -17,8 +17,9 @@ type DepartmentClient(transport: IHttpTransport) =
                   for id in ids do
                       yield "id", (id: UrlPart)
               | _ -> ()
-              if not (String.IsNullOrEmpty(queryParams.search)) then
-                  yield "search", (queryParams.search: UrlPart)
+              match Option.ofObj queryParams.search with
+              | Some search when not (String.IsNullOrEmpty(search)) -> yield "search", (search: UrlPart)
+              | _ -> ()
               if queryParams.pageNumber.HasValue then
                   yield "pageNumber", (queryParams.pageNumber.Value: UrlPart)
               if queryParams.pageSize.HasValue then
diff --git a/src/Bridge/Services/Clients/EmployeeClient.fs b/src/Bridge/Services/Clients/EmployeeClient.fs
index 2660db7..eae9e95 100644
--- a/src/Bridge/Services/Clients/EmployeeClient.fs
+++ b/src/Bridge/Services/Clients/EmployeeClient.fs
@@ -17,8 +17,9 @@ type EmployeeClient(transport: IHttpTransport) =
                   for id in ids do
                       yield "id", (id: UrlPart)
               | _ -> ()
-              if not (String.IsNullOrEmpty(queryParams.search)) then
-                  yield "search", (queryParams.search: UrlPart)
+              match Option.ofObj queryParams.search with
+              | Some search when not (String.IsNullOrEmpty(search)) -> yield "search", (search: UrlPart)
+              | _ -> ()
               if queryParams.pageNumber.HasValue then
                   yield "pageNumber", (queryParams.pageNumber.Value: UrlPart)
               if queryParams.pageSize.HasValue then
@@ -33,8 +34,9 @@ type EmployeeClient(transport: IHttpTransport) =
 
     let buildPagingUrl (queryParams: EmployeePagingRequestModel) =
         let parameters =
-            [ if not (String.IsNullOrEmpty(queryParams.search)) then
-                  yield "search", (queryParams.search: UrlPart)
+            [ match Option.ofObj queryParams.search with
+              | Some search when not (String.IsNullOrEmpty(search)) -> yield "search", (search: UrlPart)
+              | _ -> ()
               if queryParams.pageNumber.HasValue then
                   yield "pageNumber", (queryParams.pageNumber.Value: UrlPart)
               if queryParams.pageSize.HasValue then
diff --git a/src/Bridge/Services/UrlHelpers.fs b/src/Bridge/Services/UrlHelpers.fs
index ced0f77..e035906 100644
--- a/src/Bridge/Services/UrlHelpers.fs
+++ b/src/Bridge/Services/UrlHelpers.fs
@@ -2,6 +2,7 @@ module Fossa.Bridge.Services.UrlHelpers
 
 
 open System
+open System.Globalization
 
 let private suffixMappings =
     [ ".dev.localhost:4211", ".dev.localhost:5210"
@@ -39,7 +40,8 @@ type UrlPart(value: string) =
 
     static member op_Implicit(dt: DateTime) = UrlPart(string dt)
 
-    static member op_Implicit(dto: DateTimeOffset) = UrlPart(string dto)
+    static member op_Implicit(dto: DateTimeOffset) =
+        UrlPart(dto.ToString("O", CultureInfo.InvariantCulture))
 
 let composeRelativeUrl
     (endpointUrl: string)