diff --git a/.travis.yml b/.travis.yml
index 027bc513..ea846006 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: rust
+cache: cargo
 rust:
   - nightly
 script: ./scripts/test.sh
diff --git a/examples/todo/bootstrap.sh b/examples/todo/bootstrap.sh
index 77921440..89aba9da 100755
--- a/examples/todo/bootstrap.sh
+++ b/examples/todo/bootstrap.sh
@@ -3,10 +3,12 @@
 SCRIPT_PATH=$(cd "$(dirname "$0")" ; pwd -P)
 DATABASE_URL=${SCRIPT_PATH}/db/db.sql
 
-pushd $SCRIPT_PATH
-  # install the diesel CLI tools
-  cargo install diesel_cli
+pushd $SCRIPT_PATH > /dev/null
+  # install the diesel CLI tools if they're not installed
+  if ! command -v diesel >/dev/null 2>&1; then
+    cargo install diesel_cli
+  fi
 
   # create db/db.sql
   diesel migration --database-url=$DATABASE_URL run
-popd $SCRIPT_PATH
+popd $SCRIPT_PATH > /dev/null
diff --git a/scripts/test.sh b/scripts/test.sh
index ef4b87c8..eb00e6c4 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -46,6 +46,9 @@ function check_versions_match() {
   done
 }
 
+# Update dependencies first.
+cargo update
+
 build_and_test "${LIB_DIR}"
 build_and_test "${CODEGEN_DIR}"
 build_and_test "${CONTRIB_DIR}"