diff --git a/net-misc/lagrange/lagrange-1.6.4.recipe b/net-misc/lagrange/lagrange-1.7.1.recipe
similarity index 93%
rename from net-misc/lagrange/lagrange-1.6.4.recipe
rename to net-misc/lagrange/lagrange-1.7.1.recipe
index 51f2b18e4..a9c1450b1 100644
--- a/net-misc/lagrange/lagrange-1.6.4.recipe
+++ b/net-misc/lagrange/lagrange-1.7.1.recipe
@@ -8,7 +8,7 @@ COPYRIGHT="2020-2021 Jaakko Keränen"
 LICENSE="BSD (2-clause)"
 REVISION="1"
 SOURCE_URI="https://github.com/skyjake/lagrange/releases/download/v$portVersion/lagrange-$portVersion.tar.gz"
-CHECKSUM_SHA256="28f31507eeef91150067799d930f3b86fd45a956e0eb7d4f569218fca82f6488"
+CHECKSUM_SHA256="f43800fbfa99c15233a5dc5333f6d981b9a6139ff354c664213a04b3d6250703"
 SOURCE_DIR="lagrange-$portVersion"
 PATCHES="lagrange-$portVersion.patchset"
 ADDITIONAL_FILES="lagrange.rdef.in"
@@ -29,6 +29,7 @@ REQUIRES="
 	lib:libSDL2_2.0$secondaryArchSuffix
 	lib:libssl$secondaryArchSuffix
 	lib:libunistring$secondaryArchSuffix
+	lib:libwebp$secondaryArchSuffix
 	lib:libz$secondaryArchSuffix
 	"
 
@@ -41,6 +42,7 @@ BUILD_REQUIRES="
 	devel:libSDL2_2.0$secondaryArchSuffix
 	devel:libssl$secondaryArchSuffix
 	devel:libunistring$secondaryArchSuffix
+	devel:libwebp$secondaryArchSuffix
 	devel:libz$secondaryArchSuffix
 	"
 BUILD_PREREQUIRES="
@@ -56,6 +58,7 @@ BUILD()
 	mkdir -p build
 	cd build
 	cmake .. \
+		-DCMAKE_BUILD_TYPE=Release \
 		-DCMAKE_INSTALL_PREFIX=$appsDir/Lagrange \
 		-DENABLE_MPG123=ON \
 		-DENABLE_HARFBUZZ_MINIMAL=OFF \
diff --git a/net-misc/lagrange/patches/lagrange-1.6.4.patchset b/net-misc/lagrange/patches/lagrange-1.7.1.patchset
similarity index 80%
rename from net-misc/lagrange/patches/lagrange-1.6.4.patchset
rename to net-misc/lagrange/patches/lagrange-1.7.1.patchset
index 8be4b338a..5733a76c6 100644
--- a/net-misc/lagrange/patches/lagrange-1.6.4.patchset
+++ b/net-misc/lagrange/patches/lagrange-1.7.1.patchset
@@ -9,10 +9,10 @@ diff --git a/src/ui/window.c b/src/ui/window.c
 index b8ed210..487710c 100644
 --- a/src/ui/window.c
 +++ b/src/ui/window.c
-@@ -824,6 +824,7 @@ iBool processEvent_Window(iWindow *d, const SDL_Event *ev) {
+@@ -973,6 +973,7 @@
              SDL_Event event = *ev;
-             if (event.type == SDL_USEREVENT && isCommand_UserEvent(ev, "window.unfreeze")) {
-                 d->isDrawFrozen = iFalse;
+             if (event.type == SDL_USEREVENT && isCommand_UserEvent(ev, "window.unfreeze") && mw) {
+                 mw->isDrawFrozen = iFalse;
 +                d->isExposed = iTrue;
                  if (SDL_GetWindowFlags(d->win) & SDL_WINDOW_HIDDEN) {
                      SDL_ShowWindow(d->win);