diff --git a/Dockerfile b/Dockerfile
index d549009..9f2aebc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -69,9 +69,10 @@ RUN Xvfb :99 -screen 0 1024x768x16 & \
 
 # Download and install .NET SDK with virtual display
 RUN cd /tmp \
-    && wget https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.301/dotnet-sdk-9.0.301-win-x64.exe \
+    && wget --progress=bar:force https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.301/dotnet-sdk-9.0.301-win-x64.exe \
+    && while [ ! -f dotnet-sdk-9.0.301-win-x64.exe ] || [ ! -s dotnet-sdk-9.0.301-win-x64.exe ]; do sleep 1; done \
     && echo "Download completed, file size: $(ls -lh dotnet-sdk-9.0.301-win-x64.exe)" \
-    && sleep 2 \
+    && sleep 3 \
     && Xvfb :99 -screen 0 1024x768x16 & \
     XVFB_PID=$! \
     && sleep 3 \