diff --git a/PrusaSlicer.changes b/PrusaSlicer.changes
index 140fede..14a6953 100644
--- a/PrusaSlicer.changes
+++ b/PrusaSlicer.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Jul  9 14:30:54 UTC 2023 - Ben Greiner <code@bnavigator.de>
+
+- BuildRequire nanosvg-devel >= 2022.12.22
+  * only the fltk fork has nsvgRasterizeXY()
+
 -------------------------------------------------------------------
 Wed Jul  5 14:13:11 UTC 2023 - Hans-Peter Jansen <hpj@urpla.net>
 
diff --git a/PrusaSlicer.spec b/PrusaSlicer.spec
index 28fbbf0..2bd0e0e 100644
--- a/PrusaSlicer.spec
+++ b/PrusaSlicer.spec
@@ -70,7 +70,8 @@ BuildRequires:  update-desktop-files
 # update: this seems to be changed which 2.6.x, which requires wxBitmapComboBox,
 # that's not available with earlier versions. Try to build with wx 3.2 now.
 BuildRequires:  wxWidgets-devel
-BuildRequires:  cmake(NanoSVG)
+# need the fltk fork, see deps/NanoSVG/NanoSVG.cmake
+BuildRequires:  nanosvg-devel >= 2022.12.22
 BuildRequires:  pkgconfig(dbus-1)
 BuildRequires:  pkgconfig(gl)
 BuildRequires:  pkgconfig(glew)