diff --git a/bundles/org.openhab.binding.modbus.sunspec/README.md b/bundles/org.openhab.binding.modbus.sunspec/README.md
index a1a3c48c3454c..ee1fac627510d 100644
--- a/bundles/org.openhab.binding.modbus.sunspec/README.md
+++ b/bundles/org.openhab.binding.modbus.sunspec/README.md
@@ -6,7 +6,7 @@ SunSpec is a format for inverters and smart meters to communicate over the Modbu
 It defines how common parameters like AC/DC voltage and current, lifetime produced energy, device temperature etc can be read from the device.
 
 SunSpec is supported by several manufacturers like ABB, Fronius, LG, SMA, SolarEdge, Schneider Electric.
-For a list of certified products see this page: <https://sunspec.org/sunspec-certified-products/>
+For a list of certified products see this page: <https://sunspec.org/product-certification-registry/>
 
 ## Supported Things
 
diff --git a/bundles/org.openhab.binding.modbus/README.md b/bundles/org.openhab.binding.modbus/README.md
index 1e5f815e729f0..d4f6ad6063d9a 100644
--- a/bundles/org.openhab.binding.modbus/README.md
+++ b/bundles/org.openhab.binding.modbus/README.md
@@ -46,7 +46,7 @@ Good sources for further information:
 Useful tools
 
 - [binaryconvert.com](https://www.binaryconvert.com/): tool to convert numbers between different binary presentations
-- [rapidscada.net Modbus parser](https://modbus.rapidscada.net/): tool to parse Modbus requests and responses. Useful for debugging purposes when you want to understand the message sent / received.
+- [rapidscada.net Modbus parser](https://rapidscada.net/modbus/): tool to parse Modbus requests and responses. Useful for debugging purposes when you want to understand the message sent / received.
 - [JSFiddle tool](https://jsfiddle.net/rgypuuxq/) to test JavaScript (JS) transformations interactively
 
 ## Supported Things