diff --git a/srcpkgs/cura/patches/fix_support_blocker_crash.patch b/srcpkgs/cura/patches/fix_support_blocker_crash.patch
new file mode 100644
index 00000000000..0ac249e2e5c
--- /dev/null
+++ b/srcpkgs/cura/patches/fix_support_blocker_crash.patch
@@ -0,0 +1,15 @@
+diff --git a/cura/PickingPass.py b/cura/PickingPass.py
+index 54e886fe6..4d6ef671d 100644
+--- a/cura/PickingPass.py
++++ b/cura/PickingPass.py
+@@ -72,8 +72,8 @@ class PickingPass(RenderPass):
+ 
+         window_size = self._renderer.getWindowSize()
+ 
+-        px = (0.5 + x / 2.0) * window_size[0]
+-        py = (0.5 + y / 2.0) * window_size[1]
++        px = int((0.5 + x / 2.0) * window_size[0])
++        py = int((0.5 + y / 2.0) * window_size[1])
+ 
+         if px < 0 or px > (output.width() - 1) or py < 0 or py > (output.height() - 1):
+             return -1
diff --git a/srcpkgs/cura/template b/srcpkgs/cura/template
index 7a143a8b69a..53bd19afc3b 100644
--- a/srcpkgs/cura/template
+++ b/srcpkgs/cura/template
@@ -1,7 +1,7 @@
 # Template file for 'cura'
 pkgname=cura
-version=4.11.0
-revision=2
+version=4.12.0
+revision=1
 wrksrc="Cura-${version}"
 build_style=cmake
 configure_args="-DCURA_VERSION=${version}
@@ -18,4 +18,4 @@ maintainer="Karl Nilsson <karl.robert.nilsson@gmail.com>"
 license="LGPL-3.0-or-later"
 homepage="https://github.com/Ultimaker/Cura"
 distfiles="https://github.com/Ultimaker/Cura/archive/${version}.tar.gz"
-checksum=f8dcee2165141b9390c3144f2db4d7bbb0d62faf5f194e056266fa9409aa7a88
+checksum=ebbc00c792dca1365aa2a83c5e20b2c5973a47c2e24f1338e56fd48aac960d38