diff --git a/testdrive/utils.go b/testdrive/utils.go
index b29dc5ad3a..a5dc57cc7b 100644
--- a/testdrive/utils.go
+++ b/testdrive/utils.go
@@ -35,7 +35,7 @@ import (
 )
 
 const hashicorpReleasesURL = "https://releases.hashicorp.com"
-const terraformVersion = "1.8.5" // renovate: datasource=github-releases depName=hashicorp/terraform versioning=hashicorp
+const terraformVersion = "1.9.1" // renovate: datasource=github-releases depName=hashicorp/terraform versioning=hashicorp
 const ngrokDownloadURL = "https://bin.equinox.io/c/4VmDzA7iaHb"
 const ngrokAPIURL = "localhost:41414" // We hope this isn't used.
 const atlantisPort = 4141