diff --git a/templates/packer/ansible/roles/common/files/worker-initialization-scripts/vector.sh b/templates/packer/ansible/roles/common/files/worker-initialization-scripts/vector.sh
index 7cc1f7b1a6..9bb0f4617c 100755
--- a/templates/packer/ansible/roles/common/files/worker-initialization-scripts/vector.sh
+++ b/templates/packer/ansible/roles/common/files/worker-initialization-scripts/vector.sh
@@ -7,19 +7,23 @@ echo "Writing vector config."
 REGION=$(curl -Ls http://169.254.169.254/latest/dynamic/instance-identity/document | jq -r .region)
 
 sudo mkdir -p /etc/vector
-sudo tee /etc/vector/vector.toml > /dev/null << EOF
-[sources.journald]
-type = "journald"
-exclude_units = ["vector.service"]
-
-[sinks.out]
-type = "aws_cloudwatch_logs"
-inputs = [ "journald" ]
-region = "${REGION}"
-endpoint = "${CLOUDWATCH_LOGS_ENDPOINT_URL}"
-group_name = "${CLOUDWATCH_LOG_GROUP}"
-stream_name = "worker_syslog_{{ host }}"
-encoding.codec = "json"
+sudo tee /etc/vector/vector.yaml > /dev/null << EOF
+sources:
+  journald:
+    type: journald
+    exclude_units:
+      - vector.service
+sinks:
+  out:
+    type: aws_cloudwatch_logs
+    inputs:
+      - journald
+    region: ${REGION}
+    endpoint: ${CLOUDWATCH_LOGS_ENDPOINT_URL}
+    group_name: ${CLOUDWATCH_LOG_GROUP}
+    stream_name: worker_syslog_{{ host }}
+    encoding:
+      codec: json
 EOF
 
 sudo systemctl enable --now vector