diff --git a/.kokoro-autosynth/php.cfg b/.kokoro-autosynth/php.cfg
index b59c3c465..fdab56b2e 100644
--- a/.kokoro-autosynth/php.cfg
+++ b/.kokoro-autosynth/php.cfg
@@ -21,3 +21,6 @@ env_vars: {
     key: "AUTOSYNTH_MULTIPLE_COMMITS"
     value: "true"
 }
+
+# bump the timeout for this job to 6 hours
+timeout_mins: 360
diff --git a/.kokoro-autosynth/python.cfg b/.kokoro-autosynth/python.cfg
index 6708257be..318397aa2 100644
--- a/.kokoro-autosynth/python.cfg
+++ b/.kokoro-autosynth/python.cfg
@@ -26,3 +26,6 @@ env_vars: {
     key: "AUTOSYNTH_MULTIPLE_PRS"
     value: "true"
 }
+
+# bump the timeout for this job to 6 hours
+timeout_mins: 360