diff --git a/deploy.sh b/deploy.sh
index 8e03e9c..c3c82dc 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-set -e
+set -euo pipefail
 parent_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" || exit ; pwd -P )
 cd "$parent_path" || exit
 
diff --git a/version_bump.sh b/version_bump.sh
index 4dae7d8..d6499d9 100755
--- a/version_bump.sh
+++ b/version_bump.sh
@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+set -euo pipefail
 parent_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" || exit ; pwd -P )
 cd "$parent_path" || exit