diff --git a/spanner/Gemfile.lock b/spanner/Gemfile.lock
index 198c6c072..26fd0710d 100644
--- a/spanner/Gemfile.lock
+++ b/spanner/Gemfile.lock
@@ -87,7 +87,7 @@ GEM
       googleapis-common-protos (~> 1.7.0)
       grpc (~> 1.41)
     httpclient (2.8.3)
-    json (2.19.5)
+    json (2.19.9)
     jwt (3.1.2)
       base64
     logger (1.7.0)