diff --git a/extra/cantor/PKGBUILD b/extra/cantor/PKGBUILD
index e61159252..a7b3eeba4 100644
--- a/extra/cantor/PKGBUILD
+++ b/extra/cantor/PKGBUILD
@@ -7,7 +7,7 @@
 #  - drop julia make/optdepends, doesn't build on ARM
 
 pkgname=cantor
-pkgver=17.12.0
+pkgver=17.12.1
 pkgrel=1
 pkgdesc="KDE Frontend to Mathematical Software"
 url="https://kde.org/applications/education/cantor/"
@@ -24,7 +24,7 @@ optdepends=('maxima: Maxima backend'
 	    'python2: Python 2 backend'
             'sagemath: SageMath backend')
 source=("https://download.kde.org/stable/applications/$pkgver/src/$pkgname-$pkgver.tar.xz"{,.sig} cantor-julia-0.6.patch)
-sha256sums=('9c660078eb3ee3d6b9e7cb49ea55fbb815eebf4089357267bf92199864d8f783'
+sha256sums=('8adfb48b0cdbfffcc80bbb597c84a77b11a88ac9352366c151d66899c4d9b2cb'
             'SKIP'
             '0d57a2edd7eb2c156ff0dee6c67b6e5679d68f55f2426e77c92f25c2ec3b1f61')
 validpgpkeys=(CA262C6C83DE4D2FB28A332A3A6A4DB839EAA6D7  # Albert Astals Cid <aacid@kde.org>