diff --git a/.github/workflows/accounting-tests.yml b/.github/workflows/accounting-tests.yml
index eaafb06..6e4881f 100644
--- a/.github/workflows/accounting-tests.yml
+++ b/.github/workflows/accounting-tests.yml
@@ -33,7 +33,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '8.0.x'
 
diff --git a/.github/workflows/android-build.yml b/.github/workflows/android-build.yml
index c2b36dd..eb45440 100644
--- a/.github/workflows/android-build.yml
+++ b/.github/workflows/android-build.yml
@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
       
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
       
diff --git a/.github/workflows/azure-deploy-and-test.yml b/.github/workflows/azure-deploy-and-test.yml
index 7d78f50..d5bb279 100644
--- a/.github/workflows/azure-deploy-and-test.yml
+++ b/.github/workflows/azure-deploy-and-test.yml
@@ -48,7 +48,7 @@ jobs:
           subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
 
diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 9df1b29..61072b5 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v4
       
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
       
@@ -43,7 +43,7 @@ jobs:
       - uses: actions/checkout@v4
       
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
       
@@ -82,7 +82,7 @@ jobs:
       - uses: actions/checkout@v4
       
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
       
@@ -128,7 +128,7 @@ jobs:
       - uses: actions/checkout@v4
       
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
       
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 953c791..8adc74a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
           node-version: '20'
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '8.0.x'
 
diff --git a/.github/workflows/dotnet-tests.yml b/.github/workflows/dotnet-tests.yml
index c3330d6..00b8dad 100644
--- a/.github/workflows/dotnet-tests.yml
+++ b/.github/workflows/dotnet-tests.yml
@@ -18,7 +18,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
             dotnet-version: '9.0.x'
 
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index 1de47e3..64f73cf 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -20,7 +20,7 @@ jobs:
           cache: 'npm'
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '8.0.x'
 
diff --git a/.github/workflows/frontend_swa.yml b/.github/workflows/frontend_swa.yml
index 22e7382..3df9e02 100644
--- a/.github/workflows/frontend_swa.yml
+++ b/.github/workflows/frontend_swa.yml
@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
 
diff --git a/.github/workflows/pr-tests.yml b/.github/workflows/pr-tests.yml
index 2120995..cc477d4 100644
--- a/.github/workflows/pr-tests.yml
+++ b/.github/workflows/pr-tests.yml
@@ -27,7 +27,7 @@ jobs:
           subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
 
diff --git a/.github/workflows/security-scan.yml b/.github/workflows/security-scan.yml
index 9d63b02..c024cc5 100644
--- a/.github/workflows/security-scan.yml
+++ b/.github/workflows/security-scan.yml
@@ -26,7 +26,7 @@ jobs:
           node-version: '20'
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '8.0.x'
 
diff --git a/.github/workflows/staging-deploy.yml b/.github/workflows/staging-deploy.yml
index 4a24042..d106a0b 100644
--- a/.github/workflows/staging-deploy.yml
+++ b/.github/workflows/staging-deploy.yml
@@ -89,7 +89,7 @@ jobs:
           curl -sS "$base/api/invoices" | head -c 200 || true; echo
 
       - name: Setup .NET for E2E
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3089bdf..02a357a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'