diff --git a/dotnet/test/chrome/WebDriver.Chrome.Tests.csproj b/dotnet/test/chrome/WebDriver.Chrome.Tests.csproj
index 8474895e1d076..1f69c93a0ff2f 100644
--- a/dotnet/test/chrome/WebDriver.Chrome.Tests.csproj
+++ b/dotnet/test/chrome/WebDriver.Chrome.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48</TargetFrameworks>
     <AssemblyName>WebDriver.Chrome.Tests</AssemblyName>
   </PropertyGroup>
 
diff --git a/dotnet/test/common/WebDriver.Common.Tests.csproj b/dotnet/test/common/WebDriver.Common.Tests.csproj
index 580b618f34932..46f0097bcdbe6 100644
--- a/dotnet/test/common/WebDriver.Common.Tests.csproj
+++ b/dotnet/test/common/WebDriver.Common.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48</TargetFrameworks>
     <AssemblyName>WebDriver.Common.Tests</AssemblyName>
     <RootNamespace>OpenQA.Selenium</RootNamespace>
   </PropertyGroup>
diff --git a/dotnet/test/edge/WebDriver.Edge.Tests.csproj b/dotnet/test/edge/WebDriver.Edge.Tests.csproj
index 6112570279a59..917c36d7ae282 100644
--- a/dotnet/test/edge/WebDriver.Edge.Tests.csproj
+++ b/dotnet/test/edge/WebDriver.Edge.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48</TargetFrameworks>
     <AssemblyName>WebDriver.Edge.Tests</AssemblyName>
   </PropertyGroup>
 
diff --git a/dotnet/test/firefox/WebDriver.Firefox.Tests.csproj b/dotnet/test/firefox/WebDriver.Firefox.Tests.csproj
index 85170e05e3176..bb64393e53984 100644
--- a/dotnet/test/firefox/WebDriver.Firefox.Tests.csproj
+++ b/dotnet/test/firefox/WebDriver.Firefox.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48</TargetFrameworks>
     <AssemblyName>WebDriver.Firefox.Tests</AssemblyName>
   </PropertyGroup>
 
diff --git a/dotnet/test/ie/WebDriver.IE.Tests.csproj b/dotnet/test/ie/WebDriver.IE.Tests.csproj
index e3b9323bd2ce2..a4de6942f7bfb 100644
--- a/dotnet/test/ie/WebDriver.IE.Tests.csproj
+++ b/dotnet/test/ie/WebDriver.IE.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48</TargetFrameworks>
     <AssemblyName>WebDriver.IE.Tests</AssemblyName>
     <RootNamespace>OpenQA.Selenium.IE</RootNamespace>
   </PropertyGroup>
diff --git a/dotnet/test/remote/WebDriver.Remote.Tests.csproj b/dotnet/test/remote/WebDriver.Remote.Tests.csproj
index 9890cc97eeff8..58563243faad2 100644
--- a/dotnet/test/remote/WebDriver.Remote.Tests.csproj
+++ b/dotnet/test/remote/WebDriver.Remote.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48</TargetFrameworks>
     <AssemblyName>WebDriver.Remote.Tests</AssemblyName>
   </PropertyGroup>
 
diff --git a/dotnet/test/safari/WebDriver.Safari.Tests.csproj b/dotnet/test/safari/WebDriver.Safari.Tests.csproj
index dc259705ffa2a..e3964e27b3445 100644
--- a/dotnet/test/safari/WebDriver.Safari.Tests.csproj
+++ b/dotnet/test/safari/WebDriver.Safari.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48</TargetFrameworks>
     <AssemblyName>WebDriver.Safari.Tests</AssemblyName>
   </PropertyGroup>
 
diff --git a/dotnet/test/support/WebDriver.Support.Tests.csproj b/dotnet/test/support/WebDriver.Support.Tests.csproj
index ab3553b2a21c4..9ffeb410e34b2 100644
--- a/dotnet/test/support/WebDriver.Support.Tests.csproj
+++ b/dotnet/test/support/WebDriver.Support.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net48</TargetFrameworks>
     <AssemblyName>WebDriver.Support.Tests</AssemblyName>
   </PropertyGroup>