diff --git a/README.md b/README.md
index e13f745..81a2579 100644
--- a/README.md
+++ b/README.md
@@ -4,4 +4,4 @@ This is a simple, home-made door alarm based on ultrasound sensor distance measu
 
 The peripheral device is powered by a Raspberry Pi Pico W, with the following diagram
 
-![door alarm peripheral device circuit diagram](circuit.svg "Circuit Diagram")
+![door alarm peripheral device circuit diagram](circuit.png "Circuit Diagram")
diff --git a/circuit.png b/circuit.png
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diff --git a/circuit.svg b/circuit.svg
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