diff --git a/.kokoro/build.sh b/.kokoro/build.sh
index f515503e..9c0b5049 100755
--- a/.kokoro/build.sh
+++ b/.kokoro/build.sh
@@ -29,7 +29,7 @@ echo ${JOB_TYPE}
 
 # attempt to install 3 times with exponential backoff (starting with 10 seconds)
 retry_with_backoff 3 10 \
-  mvn install -B -V \
+  mvn install -B -V -ntp \
     -DskipTests=true \
     -Dclirr.skip=true \
     -Denforcer.skip=true \
diff --git a/.kokoro/dependencies.sh b/.kokoro/dependencies.sh
index c91e5a56..0fb8c843 100755
--- a/.kokoro/dependencies.sh
+++ b/.kokoro/dependencies.sh
@@ -31,7 +31,7 @@ export MAVEN_OPTS="-Xmx1024m -XX:MaxPermSize=128m"
 
 # this should run maven enforcer
 retry_with_backoff 3 10 \
-  mvn install -B -V \
+  mvn install -B -V -ntp \
     -DskipTests=true \
     -Dclirr.skip=true
 
@@ -86,4 +86,4 @@ then
 else
   msg "Errors found. See log statements above."
   exit 1
-fi
\ No newline at end of file
+fi
diff --git a/synth.metadata b/synth.metadata
index 5ab9dfd8..0efe4c0d 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-texttospeech.git",
-        "sha": "7497199ec5763406890a655ae4a2de879ed4c4e3"
+        "sha": "31d1b72cc9b68441395ef52a66a5886653924ad8"
       }
     },
     {
@@ -27,7 +27,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "1aeca92e4a38f47134cb955f52ea76f84f09ff88"
+        "sha": "6946fd71ae9215b0e7ae188f5057df765ee6d7d2"
       }
     }
   ],