diff --git a/scripts/macos/build-macos b/scripts/macos/build-macos
index 1e415bc8..88794996 100644
--- a/scripts/macos/build-macos
+++ b/scripts/macos/build-macos
@@ -41,7 +41,7 @@ cd $PSMOVEAPI_CHECKOUT
 if [ ! -d $OPENCV_INSTALL_DIR ]; then
     cd external
     if [ ! -d opencv ]; then
-		git clone --depth 1 --branch 3.1.0 git://github.com/Itseez/opencv.git
+		git clone --depth 1 --branch 2.4 git://github.com/opencv/opencv.git
     fi
     cd opencv
 
diff --git a/scripts/mingw64/cross-compile b/scripts/mingw64/cross-compile
index 5d5b57f0..28f8bb5b 100644
--- a/scripts/mingw64/cross-compile
+++ b/scripts/mingw64/cross-compile
@@ -18,7 +18,7 @@ fi
 PSMOVEAPI_PLATFORM="$1"
 shift
 
-OPENCV_VERSION=3.1.0
+OPENCV_VERSION=2.4
 PSMOVEAPI_VERSION=$(git describe --tags)
 
 MAKE_ARGS="$@"
@@ -35,7 +35,7 @@ fi
 # Build OpenCV
 if [ ! -d external/opencv ]; then
     if [ ! -f ${OPENCV_VERSION}.zip ]; then
-        curl -O -L https://github.com/Itseez/opencv/archive/${OPENCV_VERSION}.zip
+        curl -O -L https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.zip
     fi
     unzip ${OPENCV_VERSION}.zip
     mv opencv-${OPENCV_VERSION} external/opencv
diff --git a/scripts/visualc/build_msvc.bat b/scripts/visualc/build_msvc.bat
index 5291f527..5699b874 100644
--- a/scripts/visualc/build_msvc.bat
+++ b/scripts/visualc/build_msvc.bat
@@ -56,7 +56,7 @@ IF !ERRORLEVEL! NEQ 0 (
 REM Clone OpenCV
 IF NOT EXIST %OPENCV_DIR% (
 	cd %PSMOVE_API_EXTERNAL_DIR%
-	git clone --depth 1 --branch 3.1.0 git://github.com/Itseez/opencv.git
+	git clone --depth 1 --branch 2.4 git://github.com/opencv/opencv.git
 ) ELSE (
 	echo.
 	echo OpenCV dir already exists; assuming it has been cloned already