diff --git a/README.md b/README.md
index a9cbfda87a..76ecf86538 100644
--- a/README.md
+++ b/README.md
@@ -94,10 +94,10 @@ recommended to have a look to the brief
 
 -   Orion Context Broker
     [(en)](https://www.slideshare.net/fermingalan/orion-context-broker-20220526)
-    [(jp)](https://www.slideshare.net/fisuda/orion-context-broker-20220301-251267820)
+    [(jp)](https://www.slideshare.net/fisuda/orion-context-broker-20220526-251860297)
 -   NGSIv2 Overview for Developers That Already Know NGSIv1
     [(en)](https://www.slideshare.net/fermingalan/orion-context-broker-ngsiv2-overview-for-developers-that-already-know-ngsiv1-20220523)
-    [(jp)](https://www.slideshare.net/fisuda/orion-context-broker-ngsiv2-overview-for-developers-that-already-know-ngsiv1-20220301-251267815)
+    [(jp)](https://www.slideshare.net/fisuda/orion-context-broker-ngsiv2-overview-for-developers-that-already-know-ngsiv1-20220526)
 
 [Top](#top)