diff --git a/API/GenHTTP.API/GenHTTP.Api.csproj b/API/GenHTTP.API/GenHTTP.Api.csproj
index a47e248c..629c1550 100644
--- a/API/GenHTTP.API/GenHTTP.Api.csproj
+++ b/API/GenHTTP.API/GenHTTP.Api.csproj
@@ -8,9 +8,9 @@
     <Nullable>enable</Nullable>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     
-    <AssemblyVersion>2.7.2.0</AssemblyVersion>    
-    <FileVersion>2.7.2.0</FileVersion>    
-    <Version>2.7.2</Version>
+    <AssemblyVersion>2.7.3.0</AssemblyVersion>    
+    <FileVersion>2.7.3.0</FileVersion>    
+    <Version>2.7.3</Version>
     
     <Authors>Andreas Nägeli</Authors>    
     <Company />
diff --git a/Core/GenHTTP.Core/GenHTTP.Core.csproj b/Core/GenHTTP.Core/GenHTTP.Core.csproj
index 82079d59..5891f433 100644
--- a/Core/GenHTTP.Core/GenHTTP.Core.csproj
+++ b/Core/GenHTTP.Core/GenHTTP.Core.csproj
@@ -8,9 +8,9 @@
     <Nullable>enable</Nullable>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 
-    <AssemblyVersion>2.7.2.0</AssemblyVersion>
-    <FileVersion>2.7.2.0</FileVersion>
-    <Version>2.7.2</Version>
+    <AssemblyVersion>2.7.3.0</AssemblyVersion>
+    <FileVersion>2.7.3.0</FileVersion>
+    <Version>2.7.3</Version>
 
     <Authors>Andreas Nägeli</Authors>
     <Company />
diff --git a/Core/GenHTTP.Core/Protocol/CookieCollection.cs b/Core/GenHTTP.Core/Protocol/CookieCollection.cs
index 50328e70..2664c0ef 100644
--- a/Core/GenHTTP.Core/Protocol/CookieCollection.cs
+++ b/Core/GenHTTP.Core/Protocol/CookieCollection.cs
@@ -1,8 +1,7 @@
-using System;
+using GenHTTP.Api.Protocol;
+using System;
 using System.Collections.Generic;
 
-using GenHTTP.Api.Protocol;
-
 namespace GenHTTP.Core.Protocol
 {
 
@@ -19,7 +18,10 @@ internal void Add(string header)
         {
             foreach (var cookie in Parse(header))
             {
-                Add(cookie.Name, cookie);
+                if (!ContainsKey(cookie.Name))
+                {
+                    Add(cookie.Name, cookie);
+                }
             }
         }
 
diff --git a/Modules/GenHTTP.Modules.Core/GenHTTP.Modules.Core.csproj b/Modules/GenHTTP.Modules.Core/GenHTTP.Modules.Core.csproj
index 08dcf3ae..201922e5 100644
--- a/Modules/GenHTTP.Modules.Core/GenHTTP.Modules.Core.csproj
+++ b/Modules/GenHTTP.Modules.Core/GenHTTP.Modules.Core.csproj
@@ -8,9 +8,9 @@
     <Nullable>enable</Nullable>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 
-    <AssemblyVersion>2.7.2.0</AssemblyVersion>
-    <FileVersion>2.7.2.0</FileVersion>
-    <Version>2.7.2</Version>
+    <AssemblyVersion>2.7.3.0</AssemblyVersion>
+    <FileVersion>2.7.3.0</FileVersion>
+    <Version>2.7.3</Version>
 
     <Authors>Andreas Nägeli</Authors>
     <Company />
diff --git a/Modules/GenHTTP.Modules.Scriban/GenHTTP.Modules.Scriban.csproj b/Modules/GenHTTP.Modules.Scriban/GenHTTP.Modules.Scriban.csproj
index f27668a9..2ef97fff 100644
--- a/Modules/GenHTTP.Modules.Scriban/GenHTTP.Modules.Scriban.csproj
+++ b/Modules/GenHTTP.Modules.Scriban/GenHTTP.Modules.Scriban.csproj
@@ -8,9 +8,9 @@
     <Nullable>enable</Nullable>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 
-    <AssemblyVersion>2.7.2.0</AssemblyVersion>
-    <FileVersion>2.7.2.0</FileVersion>
-    <Version>2.7.2</Version>
+    <AssemblyVersion>2.7.3.0</AssemblyVersion>
+    <FileVersion>2.7.3.0</FileVersion>
+    <Version>2.7.3</Version>
 
     <Authors>Andreas Nägeli</Authors>
     <Company />
diff --git a/Modules/GenHTTP.Modules.Webservices/GenHTTP.Modules.Webservices.csproj b/Modules/GenHTTP.Modules.Webservices/GenHTTP.Modules.Webservices.csproj
index f812e751..b04d0a09 100644
--- a/Modules/GenHTTP.Modules.Webservices/GenHTTP.Modules.Webservices.csproj
+++ b/Modules/GenHTTP.Modules.Webservices/GenHTTP.Modules.Webservices.csproj
@@ -8,9 +8,9 @@
     <Nullable>enable</Nullable>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 
-    <AssemblyVersion>2.7.2.0</AssemblyVersion>
-    <FileVersion>2.7.2.0</FileVersion>
-    <Version>2.7.2</Version>
+    <AssemblyVersion>2.7.3.0</AssemblyVersion>
+    <FileVersion>2.7.3.0</FileVersion>
+    <Version>2.7.3</Version>
 
     <Authors>Andreas Nägeli</Authors>
     <Company />