diff --git a/examples/hello_world/aiken.lock b/examples/hello_world/aiken.lock
index 0423f31b..3c23f426 100644
--- a/examples/hello_world/aiken.lock
+++ b/examples/hello_world/aiken.lock
@@ -3,11 +3,11 @@
 
 [[requirements]]
 name = "aiken-lang/stdlib"
-version = "main"
+version = "7ca9e659688ea88e1cfdc439b6c20c4c7fae9985"
 source = "github"
 
 [[packages]]
 name = "aiken-lang/stdlib"
-version = "main"
+version = "7ca9e659688ea88e1cfdc439b6c20c4c7fae9985"
 requirements = []
 source = "github"
diff --git a/examples/hello_world/aiken.toml b/examples/hello_world/aiken.toml
index 88bf5be0..edb9f589 100644
--- a/examples/hello_world/aiken.toml
+++ b/examples/hello_world/aiken.toml
@@ -1,7 +1,7 @@
 name = "aiken-lang/hello_world"
-version = "0.0.0"
+version = "1.0.0"
 licences = ["Apache-2.0"]
 description = "Aiken contracts for project 'aiken-lang/hello_world'"
 dependencies = [
-  { name = "aiken-lang/stdlib", version = "main", source = "github" },
+  { name = "aiken-lang/stdlib", version = "7ca9e659688ea88e1cfdc439b6c20c4c7fae9985", source = "github" },
 ]