diff --git a/.gitea/workflows/build-sidecar-linux.yml b/.gitea/workflows/build-sidecar-linux.yml
index 2e48666..5899d49 100644
--- a/.gitea/workflows/build-sidecar-linux.yml
+++ b/.gitea/workflows/build-sidecar-linux.yml
@@ -47,7 +47,7 @@ jobs:
 
       - name: Package sidecar (CUDA)
         run: |
-          cd dist/local-transcription-backend && zip -r ../../sidecar-linux-x86_64-cuda.zip .
+          cd dist/local-transcription-backend && zip -9 -r ../../sidecar-linux-x86_64-cuda.zip .
 
       - name: Build sidecar (CPU)
         run: |
@@ -59,7 +59,7 @@ jobs:
 
       - name: Package sidecar (CPU)
         run: |
-          cd dist/local-transcription-backend && zip -r ../../sidecar-linux-x86_64-cpu.zip .
+          cd dist/local-transcription-backend && zip -9 -r ../../sidecar-linux-x86_64-cpu.zip .
 
       - name: Upload to sidecar release
         env:
diff --git a/.gitea/workflows/build-sidecar-windows.yml b/.gitea/workflows/build-sidecar-windows.yml
index 809acc8..bf443b3 100644
--- a/.gitea/workflows/build-sidecar-windows.yml
+++ b/.gitea/workflows/build-sidecar-windows.yml
@@ -64,7 +64,7 @@ jobs:
       - name: Package sidecar (CUDA)
         shell: powershell
         run: |
-          7z a -tzip -mx=5 sidecar-windows-x86_64-cuda.zip .\dist\local-transcription-backend\*
+          7z a -tzip -mx=9 sidecar-windows-x86_64-cuda.zip .\dist\local-transcription-backend\*
 
       - name: Build sidecar (CPU)
         shell: powershell
@@ -76,7 +76,7 @@ jobs:
       - name: Package sidecar (CPU)
         shell: powershell
         run: |
-          7z a -tzip -mx=5 sidecar-windows-x86_64-cpu.zip .\dist\local-transcription-backend\*
+          7z a -tzip -mx=9 sidecar-windows-x86_64-cpu.zip .\dist\local-transcription-backend\*
 
       - name: Upload to sidecar release
         shell: powershell