diff --git a/.github/workflows/build-linux.yml b/.github/workflows/build-linux.yml
index d7895998..3a8459e8 100644
--- a/.github/workflows/build-linux.yml
+++ b/.github/workflows/build-linux.yml
@@ -33,7 +33,7 @@ on:
 
 env:
   DOTNET_CONFIGURATION: "Release"
-  DOTNET_VERSION: "8.0.x"
+  DOTNET_VERSION: "9.0.x"
   RELEASE_NAME: "chardonnay"
 
 jobs:
diff --git a/.github/workflows/build-windows.yml b/.github/workflows/build-windows.yml
index cff369b0..a5b456e3 100644
--- a/.github/workflows/build-windows.yml
+++ b/.github/workflows/build-windows.yml
@@ -18,7 +18,7 @@ on:
 
 env:
   DOTNET_CONFIGURATION: "Release"
-  DOTNET_VERSION: "8.0.x"
+  DOTNET_VERSION: "9.0.x"
 
 jobs:
   build: