diff --git a/.gitmodules b/.gitmodules
index d97f8bae..cbe668dc 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -9,11 +9,11 @@
 	shallow = true
 [submodule "vst/external/VST_SDK/VST3_SDK/pluginterfaces"]
 	path = vst/external/VST_SDK/VST3_SDK/pluginterfaces
-	url = https://github.com/sfztools/vst3_pluginterfaces.git
+	url = https://github.com/steinbergmedia/vst3_pluginterfaces.git
 	shallow = true
 [submodule "vst/external/VST_SDK/VST3_SDK/public.sdk"]
 	path = vst/external/VST_SDK/VST3_SDK/public.sdk
-	url = https://github.com/sfztools/vst3_public_sdk.git
+	url = https://github.com/steinbergmedia/vst3_public_sdk.git
 	shallow = true
 [submodule "vst/external/VST_SDK/VST3_SDK/vstgui4"]
 	path = editor/external/vstgui4
diff --git a/.travis/script_mingw.sh b/.travis/script_mingw.sh
index 85aac04e..cdd4b941 100755
--- a/.travis/script_mingw.sh
+++ b/.travis/script_mingw.sh
@@ -3,6 +3,11 @@
 set -ex
 . .travis/docker_container.sh
 
+# need to convert some includes to lower case (as of VST 3.7.1)
+find vst/external/VST_SDK -type d -name source -exec \
+     find {} -type f -name '*.[hc]' -o -name '*.[hc]pp' -print0 \; | \
+  xargs -0 sed -i 's/<Windows.h>/<windows.h>/'
+
 mkdir -p build/${INSTALL_DIR} && cd build
 if [[ ${CROSS_COMPILE} == "mingw32" ]]; then
   buildenv i686-w64-mingw32-cmake -DCMAKE_BUILD_TYPE=Release \
diff --git a/vst/CMakeLists.txt b/vst/CMakeLists.txt
index ccb73714..8f993b8c 100644
--- a/vst/CMakeLists.txt
+++ b/vst/CMakeLists.txt
@@ -242,6 +242,7 @@ elseif(SFIZZ_AU)
         "${VST3SDK_BASEDIR}/pluginterfaces/base/coreiids.cpp"
         "${VST3SDK_BASEDIR}/pluginterfaces/base/funknown.cpp"
         "${VST3SDK_BASEDIR}/pluginterfaces/base/ustring.cpp"
+        "${VST3SDK_BASEDIR}/public.sdk/source/common/commoniids.cpp"
         "${VST3SDK_BASEDIR}/public.sdk/source/vst/vstinitiids.cpp")
 
     # Add VST hosting classes
diff --git a/vst/external/VST_SDK/VST3_SDK/base b/vst/external/VST_SDK/VST3_SDK/base
index 4f6a7184..7b977c03 160000
--- a/vst/external/VST_SDK/VST3_SDK/base
+++ b/vst/external/VST_SDK/VST3_SDK/base
@@ -1 +1 @@
-Subproject commit 4f6a7184f20f40a7c940a6717e6e0d8b35eeea63
+Subproject commit 7b977c031f42a6bab08e8b10f4f8df0a1f516c38
diff --git a/vst/external/VST_SDK/VST3_SDK/pluginterfaces b/vst/external/VST_SDK/VST3_SDK/pluginterfaces
index 8c07a58d..fe202edc 160000
--- a/vst/external/VST_SDK/VST3_SDK/pluginterfaces
+++ b/vst/external/VST_SDK/VST3_SDK/pluginterfaces
@@ -1 +1 @@
-Subproject commit 8c07a58d84c544a73e1ccad2efae200505796773
+Subproject commit fe202edc93e9a01a1f79a614cc9a292dc9bf3e6e
diff --git a/vst/external/VST_SDK/VST3_SDK/public.sdk b/vst/external/VST_SDK/VST3_SDK/public.sdk
index b63097eb..a3a3ed1b 160000
--- a/vst/external/VST_SDK/VST3_SDK/public.sdk
+++ b/vst/external/VST_SDK/VST3_SDK/public.sdk
@@ -1 +1 @@
-Subproject commit b63097ebce2105845aa97d04808fca4dfd51307c
+Subproject commit a3a3ed1b1620df0b064564f1fd5423ae110234a0