diff --git a/.gitignore b/.gitignore
index ba1af58..231e4f6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@
 /python-spanner-3.20.0.tar.gz
 /python-spanner-3.21.0.tar.gz
 /python-spanner-3.22.0.tar.gz
+/python-spanner-3.22.2.tar.gz
diff --git a/python-google-cloud-spanner.spec b/python-google-cloud-spanner.spec
index 5a1a8ea..3309e17 100644
--- a/python-google-cloud-spanner.spec
+++ b/python-google-cloud-spanner.spec
@@ -5,7 +5,7 @@
 
 %global         srcname     google-cloud-spanner
 %global         forgeurl    https://github.com/googleapis/python-spanner
-Version:        3.22.0
+Version:        3.22.2
 %global         tag         v%{version}
 %forgemeta
 
@@ -41,6 +41,9 @@ Summary:        %{summary}
 %prep
 %forgeautosetup -p1
 
+# Allow a slightly older protobuf.
+sed -i 's/"protobuf.*",/"protobuf>=3.19.4",/' setup.py
+
 # Replace mock imports with unittest.mock.
 grep -rl "^[[:space:]]*import mock" tests | \
     xargs sed -i -E 's/^([[:space:]]*)import mock/\1from unittest import mock/'
diff --git a/sources b/sources
index d164b7b..9c0fd0a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (python-spanner-3.22.0.tar.gz) = 097b087b3f9046c788d8aa98afde7c7fa371e45405a4021047907f129907d540a9ada221de46c3e4e63cc6acfd9ded2f907f62224128ba71a4f05039f31a5a6f
+SHA512 (python-spanner-3.22.2.tar.gz) = 0eff63cecb41a71f295e2496b6cb9c1da8d699bab34f2dded0e9f8c94dd227afeda9ba11e2497b3a6fe3661c9296baa694932f7454a0c0e37f9d6caf6f95a1f0