diff --git a/C4_Component.puml b/C4_Component.puml
index 40a8a24..356cd98 100644
--- a/C4_Component.puml
+++ b/C4_Component.puml
@@ -1,4 +1,4 @@
-!includeurl https://raw.githubusercontent.com/RicardoNiepel/C4-PlantUML/master/C4_Container.puml
+!includeurl https://raw.githubusercontent.com/RicardoNiepel/C4-PlantUML/release/1-0/C4_Container.puml
 ' uncomment the following line and comment the first to use locally
 ' !include C4_Container.puml
 
diff --git a/C4_Container.puml b/C4_Container.puml
index 2bc697c..176a530 100644
--- a/C4_Container.puml
+++ b/C4_Container.puml
@@ -1,4 +1,4 @@
-!includeurl https://raw.githubusercontent.com/RicardoNiepel/C4-PlantUML/master/C4_Context.puml
+!includeurl https://raw.githubusercontent.com/RicardoNiepel/C4-PlantUML/release/1-0/C4_Context.puml
 ' uncomment the following line and comment the first to use locally
 ' !include C4_Context.puml
 
diff --git a/C4_Context.puml b/C4_Context.puml
index a28a9cb..8376ce2 100644
--- a/C4_Context.puml
+++ b/C4_Context.puml
@@ -1,4 +1,4 @@
-!includeurl https://raw.githubusercontent.com/RicardoNiepel/C4-PlantUML/master/C4.puml
+!includeurl https://raw.githubusercontent.com/RicardoNiepel/C4-PlantUML/release/1-0/C4.puml
 ' uncomment the following line and comment the first to use locally
 ' !include C4.puml