diff --git a/.gitignore b/.gitignore
index 88fe635..c6fecdc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 /mopac-22.0.5.tar.gz
 /mopac-22.0.6.tar.gz
 /mopac-22.1.0.tar.gz
+/mopac-22.1.1.tar.gz
diff --git a/mopac.spec b/mopac.spec
index 47c12d9..7f0c3c3 100644
--- a/mopac.spec
+++ b/mopac.spec
@@ -12,8 +12,8 @@
 %global soversion 1
 
 Name:           mopac
-Version:        22.1.0
-Release:        3%{?dist}
+Version:        22.1.1
+Release:        1%{?dist}
 Summary:        A semiempirical quantum chemistry program
 License:        LGPLv3+
 URL:            http://openmopac.net
@@ -82,6 +82,9 @@ export OMP_NUM_THREADS=1
 %{_libdir}/libmopac.so
 
 %changelog
+* Mon Jan 29 2024 Susi Lehtola <jussilehtola@fedoraproject.org> - 22.1.1-1
+- Update to 22.1.1.
+
 * Thu Jan 25 2024 Fedora Release Engineering <releng@fedoraproject.org> - 22.1.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
 
diff --git a/sources b/sources
index afd7ff7..60c885f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mopac-22.1.0.tar.gz) = b20efc69f82fc2111855a3fa47c86a4666d6b360db115abc88e974b633d7cc86341b225fa3c23f311773d5fee29af19fbb6f47bfa6f2d6a7f9fe8ba5339bae20
+SHA512 (mopac-22.1.1.tar.gz) = f42e698e3e60f1ef72674b8660a858d40cf63c891f8e88a568a2fa93ca36b4cbf663c64240463d2e0485f09f6cdb4b6fe0ab08592db1745419c8d86fcf44d06e