diff --git a/slides/ctr-bootcamp.yml b/slides/ctr-bootcamp.yml
index cc8ff1f2..bb106fe8 100644
--- a/slides/ctr-bootcamp.yml
+++ b/slides/ctr-bootcamp.yml
@@ -7,7 +7,7 @@ chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
 
 gitrepo: github.com/jpetazzo/container.training
 
-slides: http://container.training/
+slides: https://2020-05-ardan.container.training/
 
 #slidenumberprefix: "#SomeHashTag — "
 
diff --git a/slides/k8s-adv-1.yml b/slides/k8s-adv-1.yml
index de27384d..ca015ed1 100644
--- a/slides/k8s-adv-1.yml
+++ b/slides/k8s-adv-1.yml
@@ -9,7 +9,7 @@ chat: "[Gitter](https://gitter.im/jpetazzo/training-20200427-online)"
 
 gitrepo: github.com/jpetazzo/container.training
 
-slides: https://2020-04-ardan.container.training/
+slides: https://2020-05-ardan.container.training/
 
 #slidenumberprefix: "#SomeHashTag — "
 
diff --git a/slides/k8s-adv-2.yml b/slides/k8s-adv-2.yml
index fce0feb7..6bff27bd 100644
--- a/slides/k8s-adv-2.yml
+++ b/slides/k8s-adv-2.yml
@@ -9,7 +9,7 @@ chat: "[Gitter](https://gitter.im/jpetazzo/training-20200427-online)"
 
 gitrepo: github.com/jpetazzo/container.training
 
-slides: https://2020-04-ardan.container.training/
+slides: https://2020-05-ardan.container.training/
 
 #slidenumberprefix: "#SomeHashTag — "
 
diff --git a/slides/k8s-adv-3.yml b/slides/k8s-adv-3.yml
index 2db0d1dc..dfe68c52 100644
--- a/slides/k8s-adv-3.yml
+++ b/slides/k8s-adv-3.yml
@@ -8,7 +8,7 @@ chat: "[Gitter](https://gitter.im/jpetazzo/training-20200427-online)"
 
 gitrepo: github.com/jpetazzo/container.training
 
-slides: https://2020-04-ardan.container.training/
+slides: https://2020-05-ardan.container.training/
 
 #slidenumberprefix: "#SomeHashTag — "
 
diff --git a/slides/k8s-adv-4.yml b/slides/k8s-adv-4.yml
index f358f151..be343168 100644
--- a/slides/k8s-adv-4.yml
+++ b/slides/k8s-adv-4.yml
@@ -9,7 +9,7 @@ chat: "[Gitter](https://gitter.im/jpetazzo/training-20200427-online)"
 
 gitrepo: github.com/jpetazzo/container.training
 
-slides: https://2020-04-ardan.container.training/
+slides: https://2020-05-ardan.container.training/
 
 #slidenumberprefix: "#SomeHashTag — "
 
diff --git a/slides/k8s-bootcamp.yml b/slides/k8s-bootcamp.yml
index 3b52ed2f..7fd132e3 100644
--- a/slides/k8s-bootcamp.yml
+++ b/slides/k8s-bootcamp.yml
@@ -7,7 +7,7 @@ chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
 
 gitrepo: github.com/jpetazzo/container.training
 
-slides: http://container.training/
+slides: https://2020-05-ardan.container.training/
 
 #slidenumberprefix: "#SomeHashTag — "