diff --git a/graphs/dijkstra.py b/graphs/dijkstra.py
index 52354b5c9..5f09a45cf 100644
--- a/graphs/dijkstra.py
+++ b/graphs/dijkstra.py
@@ -71,7 +71,7 @@ G = {
     "F": [["C", 3], ["E", 3]],
 }
 
-"""
+r"""
 Layout of G2:
 
 E -- 1 --> B -- 1 --> C -- 1 --> D -- 1 --> F
@@ -87,7 +87,7 @@ G2 = {
     "F": [],
 }
 
-"""
+r"""
 Layout of G3:
 
 E -- 1 --> B -- 1 --> C -- 1 --> D -- 1 --> F