diff --git a/.gitignore b/.gitignore
index c4a3c5e..f56f012 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@
 /prjtrellis-46f50f7.tar.gz
 /prjtrellis-64b38df.tar.gz
 /prjtrellis-db-35d900a.tar.gz
+/prjtrellis-7a2e9ed.tar.gz
diff --git a/sources b/sources
index a8555cc..5838ed0 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (prjtrellis-64b38df.tar.gz) = 21fe1fa5ebe954d9997c079944bc3b87a72e247c37ab38c1598920c823daf35cd80efbe12e221bfd2d484d134ebc50f21749e9a1e715b1501b94efa8a12ca57f
+SHA512 (prjtrellis-7a2e9ed.tar.gz) = 4c726ad63b3e66da0f7a6eaf8a0be54278aa5076120564a594a7b3c9490c57c11f21a4deb211860a69b2075a20e58377bfd2c479e58ca600c13773a0c71fd6bc
 SHA512 (prjtrellis-db-35d900a.tar.gz) = 21e3a6ea386af610fdff4124151ebe98cb0ad75be641b641fa1f52ef0fd521feb289628d156cdcf69e209fdcdb9c65aeb3226128dd652c8ae3fb2cb7f3aa4389
diff --git a/trellis.spec b/trellis.spec
index 606b8e5..868f6eb 100644
--- a/trellis.spec
+++ b/trellis.spec
@@ -1,16 +1,16 @@
-%global commit0 64b38dfda6f0bc556839b513820f943f64b23cc3
+%global commit0 7a2e9ed8a7d145251f5720a43229ee77de637d4a
 %global shortcommit0 %(c=%{commit0}; echo ${c:0:7})
 
 %global commit1 35d900a94ff0db152679a67bf6e4fbf40ebc34aa
 %global shortcommit1 %(c=%{commit1}; echo ${c:0:7})
 
-%global snapdate 20220509
+%global snapdate 20220705
 
 %global __python %{__python3}
 
 Name:          trellis
 Version:       1.2.1
-Release:       7.%{snapdate}git%{shortcommit0}%{?dist}
+Release:       8.%{snapdate}git%{shortcommit0}%{?dist}
 Summary:       Lattice ECP5 FPGA bitstream creation/analysis/programming tools
 License:       ISC
 URL:           https://github.com/YosysHQ/prj%{name}
@@ -22,6 +22,7 @@ BuildRequires: cmake
 BuildRequires: gcc-c++
 BuildRequires: python3-devel
 BuildRequires: boost-python3-devel
+BuildRequires: pybind11-devel
 # for building docs:
 BuildRequires: python3-sphinx-latex
 BuildRequires: python3-recommonmark
@@ -71,7 +72,9 @@ find . -name \.gitignore -delete
 %define __cmake_in_source_build 1
 # disable LTO to allow building for f33 rawhide (BZ 1865586):
 %define _lto_cflags %{nil}
-%cmake libtrellis -DCURRENT_GIT_VERSION=%{version}-%{release}
+%cmake libtrellis \
+	-DPYBIND11_INCLUDE_DIR="/usr/include/pybind11/" \
+	-DCURRENT_GIT_VERSION=%{version}-%{release}
 %cmake_build
 %make_build -C docs latexpdf
 # build manpages:
@@ -114,6 +117,9 @@ install -Dpm644 -t %{buildroot}%{_mandir}/man1 man1/*
 %{_datadir}/%{name}/database
 
 %changelog
+* Tue Jul 05 2022 Gabriel Somlo <gsomlo@gmail.com> - 1.2.1-8.20220705git7a2e9ed
+- Update to newer snapshot (incl. fix for Python 3.11, BZ 2103635).
+
 * Mon Jun 13 2022 Python Maint <python-maint@redhat.com> - 1.2.1-7.20220509git64b38df
 - Rebuilt for Python 3.11