diff --git a/e2e/handlers.sh b/e2e/handlers.sh
index 5af8d3f..03e9baf 100644
--- a/e2e/handlers.sh
+++ b/e2e/handlers.sh
@@ -9,7 +9,7 @@ setup_suite() {
 }
 
 test_graph_handler() {
-    assert "curl_pod http://10.4.0.1:1107/graph?format=svg&layout=circo | grep -q '<svg'" "graph handler should produce SVG output"
+    assert "curl_pod 'http://10.4.0.1:1107/graph?format=svg&layout=circo' | grep -q '<svg'" "graph handler should produce SVG output"
     assert "curl_pod http://10.4.0.1:1107/graph?layout=circo | grep -q '<svg'" "graph handler should default to SVG output"
     assert "curl_pod http://10.4.0.1:1107/graph | grep -q '<svg'" "graph handler should default to SVG output"
     assert_fail "curl_pod http://10.4.0.1:1107/graph?layout=fake | grep -q '<svg'" "graph handler should reject invalid layout"
@@ -22,5 +22,5 @@ test_health_handler() {
 
 test_metrics_handler() {
     assert "curl_pod http://10.4.0.1:1107/metrics" "metrics handler should return a status code of 200"
-    assert "(( $(curl_pod http://10.4.0.1:1107/metrics | egrep ^kilo_nodes | cut -d " " -f 2) > 0 ))" "metrics handler should provide metric: kilo_nodes > 0"
+    assert "(( $(curl_pod http://10.4.0.1:1107/metrics | grep -E ^kilo_nodes | cut -d " " -f 2) > 0 ))" "metrics handler should provide metric: kilo_nodes > 0"
 }