Library not working with Kicad 6.0.11 under Linux

The readme states that you need at least KiCAD v.6 to use the library, but I'm experiencing some problems: as soon as I try to add a component to my schematic this load error pops up:

Errors loading symbols:

Error loading symbol library fabacademy. KiCad was unable to open this file because it was created with a more recent version than the one you are running. To open it you will need to upgrade KiCad to a version dated 20220914 or later.

Here are my version info:

Application: KiCad Schematic Editor

Version: 6.0.11+dfsg-1, release build

Libraries:
	wxWidgets 3.2.2
	libcurl/7.88.1 OpenSSL/3.0.8 zlib/1.2.13 brotli/1.0.9 zstd/1.5.4 libidn2/2.3.3 libpsl/0.21.2 (+libidn2/2.3.3) libssh2/1.10.0 nghttp2/1.52.0 librtmp/2.3

Platform: Linux 6.1.0-4-amd64 x86_64, 64 bit, Little endian, wxGTK, , tty

Build Info:
	Date: Jan 26 2023 05:35:43
	wxWidgets: 3.2.1 (wchar_t,wx containers) GTK+ 3.24
	Boost: 1.74.0
	OCC: 7.6.3
	Curl: 7.87.0
	ngspice: 38
	Compiler: GCC 12.2.0 with C++ ABI 1017

Build settings:
	KICAD_USE_OCC=ON
	KICAD_SPICE=ON

Up until now I was using an old version of the fab library (I was still on commit d11cdf89). I'm running debian sid, and kicad 7.0 is yet to be packaged.

Googling around I found this forum post. Manually changing the header seems quite the dirty hack, but it will suffice at least until ver. 7.0 lands on Debian