diff --git a/.github/trigger_files/beam_PostCommit_Python.json b/.github/trigger_files/beam_PostCommit_Python.json
index 30ee463ad4e..1eb60f6e495 100644
--- a/.github/trigger_files/beam_PostCommit_Python.json
+++ b/.github/trigger_files/beam_PostCommit_Python.json
@@ -1,5 +1,5 @@
 {
   "comment": "Modify this file in a trivial way to cause this test suite to run.",
-  "modification": 2
+  "modification": 3
 }
 
diff --git a/runners/spark/job-server/spark_job_server.gradle b/runners/spark/job-server/spark_job_server.gradle
index 5ed5f4277bf..90109598ed6 100644
--- a/runners/spark/job-server/spark_job_server.gradle
+++ b/runners/spark/job-server/spark_job_server.gradle
@@ -301,3 +301,7 @@ createCrossLanguageValidatesRunnerTask(
     "--endpoint localhost:${jobPort}",
   ],
 )
+
+shadowJar {
+  outputs.upToDateWhen { false }
+}