diff --git a/README.md b/README.md
index ce576dc..c86c9df 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,7 @@ The module depends on the following software components:
 
 ### Command-line tools
 
-- terraform - v13
-- ibmcloud cli
+- terraform - v0.15
 
 ### Terraform providers
 
diff --git a/version.tf b/version.tf
index 450c502..7ed0aa8 100644
--- a/version.tf
+++ b/version.tf
@@ -1,3 +1,3 @@
 terraform {
-  required_version = ">= 0.13.0"
+  required_version = ">= 0.15.0"
 }