diff --git a/README.md b/README.md
index b1df11c..574decf 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 Use this URL for the source of the module. See the usage examples below for more details.
 
 ```hcl
-github.com/pbs/terraform-aws-lambda-cron-module?ref=x.y.z
+github.com/pbs/terraform-aws-lambda-cron-module?ref=0.1.39
 ```
 
 ### Alternative Installation Methods
@@ -22,7 +22,7 @@ Integrate this module like so:
 
 ```hcl
 module "lambda-cron" {
-  source = "github.com/pbs/terraform-aws-lambda-cron-module?ref=x.y.z"
+  source = "github.com/pbs/terraform-aws-lambda-cron-module?ref=0.1.39"
 
   # Required Parameters
   handler  = "main"
@@ -44,7 +44,7 @@ module "lambda-cron" {
 
 If this repo is added as a subtree, then the version of the module should be close to the version shown here:
 
-`x.y.z`
+`0.1.39`
 
 Note, however that subtrees can be altered as desired within repositories.