diff --git a/appveyor.yml b/appveyor.yml
index b2d19ac..fb87aed 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -25,7 +25,7 @@ install:
 
     mkdir %PLATFORM% && cd %PLATFORM%
 
-    cmake ..\sources -G "Visual Studio 16 2019" -Ax64 -DQT_PATH="C:\Qt\5.15.2\msvc2019_64" -DBOOST_ROOT="C:\Libraries\boost_1_73_0" -DOpenCV_DIR="C:\Tools\opencv\build"
+    cmake ..\sources -G "Visual Studio 16 2019" -Ax64 -DQT_PATH="C:\Qt\5.15.2\msvc2019_64" -DBOOST_ROOT="C:\Libraries\boost_1_77_0" -DOpenCV_DIR="C:\Tools\opencv\build"
 build:
   project: $(APPVEYOR_BUILD_FOLDER)\toonz\$(PLATFORM)\ALL_BUILD.vcxproj
   parallel: true