diff --git a/src/Accounts/Accounts/ChangeLog.md b/src/Accounts/Accounts/ChangeLog.md
index 04cc065ff0df..4cdf86c95ad6 100644
--- a/src/Accounts/Accounts/ChangeLog.md
+++ b/src/Accounts/Accounts/ChangeLog.md
@@ -19,6 +19,7 @@
 -->
 ## Upcoming Release
 * Exposed SubscriptionPolicies in `Get-AzSubscription` [#12551]
+* Updated Azure.Core to 1.4.0
 
 ## Version 1.9.2
 * Updated `Connect-AzAccount` to accept parameter `MaxContextPopulation` [#9865]
diff --git a/src/Accounts/Authentication/Utilities/CustomAssemblyResolver.cs b/src/Accounts/Authentication/Utilities/CustomAssemblyResolver.cs
index 8e2c69c1bfdc..1cfd448b9ea4 100644
--- a/src/Accounts/Authentication/Utilities/CustomAssemblyResolver.cs
+++ b/src/Accounts/Authentication/Utilities/CustomAssemblyResolver.cs
@@ -10,7 +10,7 @@ public static class CustomAssemblyResolver
         private static IDictionary<string, Version> NetFxPreloadAssemblies =
             new Dictionary<string, Version>(StringComparer.InvariantCultureIgnoreCase)
             {
-                {"Azure.Core", new Version("1.3.0.0")},
+                {"Azure.Core", new Version("1.4.0.0")},
                 {"Microsoft.Bcl.AsyncInterfaces", new Version("1.0.0.0")},
                 {"Microsoft.IdentityModel.Clients.ActiveDirectory", new Version("3.19.2.6005")},
                 {"Microsoft.IdentityModel.Clients.ActiveDirectory.Platform", new Version("3.19.2.6005")},
diff --git a/src/lib/NetCorePreloadAssemblies/Azure.Core.dll b/src/lib/NetCorePreloadAssemblies/Azure.Core.dll
index b10773c3d9c6..39cd0e3c845d 100644
Binary files a/src/lib/NetCorePreloadAssemblies/Azure.Core.dll and b/src/lib/NetCorePreloadAssemblies/Azure.Core.dll differ
diff --git a/src/lib/NetFxPreloadAssemblies/Azure.Core.dll b/src/lib/NetFxPreloadAssemblies/Azure.Core.dll
index b10773c3d9c6..39cd0e3c845d 100644
Binary files a/src/lib/NetFxPreloadAssemblies/Azure.Core.dll and b/src/lib/NetFxPreloadAssemblies/Azure.Core.dll differ