diff --git a/build/lambda-functions/action.yml b/build/lambda-functions/action.yml
index 8236807..3128188 100644
--- a/build/lambda-functions/action.yml
+++ b/build/lambda-functions/action.yml
@@ -10,7 +10,7 @@ inputs:
     required: true
   dotnetVersion:
     description: The .NET version to use
-    default: '8.0.x'
+    default: '9.0.x'
   verbosity:
     description: The verbosity of the scripts
     default: quiet
diff --git a/build/lambda-functions/build-lambda-functions.ps1 b/build/lambda-functions/build-lambda-functions.ps1
index 42a649a..93d81ec 100644
--- a/build/lambda-functions/build-lambda-functions.ps1
+++ b/build/lambda-functions/build-lambda-functions.ps1
@@ -15,7 +15,7 @@ Param(
   [string]$solutionPath, # Typically './src/proto-api/Milochau.Proto.Functions.sln'
 
   [parameter(Mandatory = $true)]
-  [string]$publishPathFilter, # Typically '*/bin/Release/net8.0/linux-x64/publish/bootstrap'
+  [string]$publishPathFilter, # Typically '*/bin/Release/net9.0/linux-x64/publish/bootstrap'
   
   [parameter(Mandatory = $true)]
   [ValidateSet('quiet', 'minimal', 'normal', 'detailed', 'diagnostic')]
diff --git a/build/netcore/action.yml b/build/netcore/action.yml
index c8ec74e..d939954 100644
--- a/build/netcore/action.yml
+++ b/build/netcore/action.yml
@@ -10,7 +10,7 @@ inputs:
     required: true
   dotnetVersion:
     description: The .NET version to use
-    default: '8.0.x'
+    default: '9.0.x'
   verbosity:
     description: The verbosity of the scripts
     default: quiet
diff --git a/release/nuget/action.yml b/release/nuget/action.yml
index d399b64..3384f69 100644
--- a/release/nuget/action.yml
+++ b/release/nuget/action.yml
@@ -13,7 +13,7 @@ inputs:
     required: true
   dotnetVersion:
     description: The .NET version to use
-    default: '8.0.x'
+    default: '9.0.x'
   createGithubPrerelease:
     description: Create GitHub Release for unstable version
     default: false