diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b8c5f684d..9585d12108 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,7 +36,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Bumps `Proc` from 0.8.1 to 0.8.2
 - Bumps `System.Text.Json` from 8.0.4 to 8.0.5
 - Bumps `JunitXml.TestLogger` from 4.0.254 to 4.1.0
-- Bumps `FSharp.Core` from 8.0.400 to 8.0.401
+- Bumps `FSharp.Core` from 8.0.400 to 9.0.100
 - Bumps `JetBrains.Annotations` from 2024.2.0 to 2024.3.0
 - Bumps `Microsoft.Extensions.Caching.Memory` from 6.0.0 to 8.0.1
 - Bumps `xunit` from 2.8.0 to 2.9.2
diff --git a/build/scripts/scripts.fsproj b/build/scripts/scripts.fsproj
index 4b15f599e7..a28b9833d4 100644
--- a/build/scripts/scripts.fsproj
+++ b/build/scripts/scripts.fsproj
@@ -32,7 +32,7 @@
     <Content Include="..\..\.github\license-header-fs.txt"><Link>license-header-fs.txt</Link></Content>
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Update="FSharp.Core" Version="8.0.401" />
+    <PackageReference Update="FSharp.Core" Version="9.0.100" />
 
     <PackageReference Include="Bullseye" Version="5.0.0" />
     <ProjectReference Include="$(SolutionRoot)\abstractions\src\OpenSearch.OpenSearch.Managed\OpenSearch.OpenSearch.Managed.csproj" />
diff --git a/tests/Tests.YamlRunner/Tests.YamlRunner.fsproj b/tests/Tests.YamlRunner/Tests.YamlRunner.fsproj
index dbfdadc495..d3cc115312 100644
--- a/tests/Tests.YamlRunner/Tests.YamlRunner.fsproj
+++ b/tests/Tests.YamlRunner/Tests.YamlRunner.fsproj
@@ -29,7 +29,7 @@
   </ItemGroup>
  
   <ItemGroup>
-    <PackageReference Update="FSharp.Core" Version="8.0.401" />
+    <PackageReference Update="FSharp.Core" Version="9.0.100" />
     
     <PackageReference Include="Argu" Version="6.2.4" />
     <PackageReference Include="FSharp.Data" Version="6.4.0" />
diff --git a/tests/Tests/Tests.csproj b/tests/Tests/Tests.csproj
index b57661c314..d92cb72e7b 100644
--- a/tests/Tests/Tests.csproj
+++ b/tests/Tests/Tests.csproj
@@ -16,7 +16,7 @@
   <ItemGroup>
     <ProjectReference Include="$(SolutionRoot)\tests\Tests.Core\Tests.Core.csproj" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
-    <PackageReference Include="FSharp.Core" Version="8.0.401" />
+    <PackageReference Include="FSharp.Core" Version="9.0.100" />
     <PackageReference Include="System.Reactive" Version="6.0.1" />
     <PackageReference Include="SemanticVersioning" Version="2.0.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />