diff --git a/.github/workflows/cluster_endtoend_tabletmanager_throttler_topo.yml b/.github/workflows/cluster_endtoend_tabletmanager_throttler_topo.yml
index 4c1a296f38c..d98c8048ae7 100644
--- a/.github/workflows/cluster_endtoend_tabletmanager_throttler_topo.yml
+++ b/.github/workflows/cluster_endtoend_tabletmanager_throttler_topo.yml
@@ -50,7 +50,8 @@ jobs:
             - 'test.go'
             - 'Makefile'
             - 'build.env'
-            - 'go.[sumod]'
+            - 'go.sum'
+            - 'go.mod'
             - 'proto/*.proto'
             - 'tools/**'
             - 'config/**'
@@ -70,7 +71,9 @@ jobs:
     - name: Tune the OS
       if: steps.skip-workflow.outputs.skip-workflow == 'false' && steps.changes.outputs.end_to_end == 'true'
       run: |
-        echo '1024 65535' | sudo tee -a /proc/sys/net/ipv4/ip_local_port_range
+        # Limit local port range to not use ports that overlap with server side
+        # ports that we listen on.
+        sudo sysctl -w net.ipv4.ip_local_port_range="22768 65535"
         # Increase the asynchronous non-blocking I/O. More information at https://dev.mysql.com/doc/refman/5.7/en/innodb-parameters.html#sysvar_innodb_use_native_aio
         echo "fs.aio-max-nr = 1048576" | sudo tee -a /etc/sysctl.conf
         sudo sysctl -p /etc/sysctl.conf