diff --git a/README.md b/README.md
index bc728e1..09532e5 100644
--- a/README.md
+++ b/README.md
@@ -209,6 +209,31 @@ These input values must be the same as any `terraform-plan` for the same configu
   - Type: string
   - Optional
 
+* `TERRAFORM_HTTP_CREDENTIALS`
+
+  Credentials that will be used for fetching modules sources with `git::http://`, `git::https://`, `http://` & `https://` schemes.
+
+  Credentials have the format `<host>=<username>:<password>`. Multiple credentials may be specified, one per line.
+
+  Each credential is evaluated in order, and the first matching credentials are used. 
+
+  Credentials that are used by git (`git::http://`, `git::https://`) allow a path after the hostname.
+  Paths are ignored by `http://` & `https://` schemes.
+  For git module sources, a credential matches if each mentioned path segment is an exact match.
+
+  For example:
+  ```yaml
+  env:
+    TERRAFORM_HTTP_CREDENTIALS: |
+      example.com=dflook:${{ secrets.HTTPS_PASSWORD }}
+      github.com/dflook/terraform-github-actions.git=dflook-actions:${{ secrets.ACTIONS_PAT }}
+      github.com/dflook=dflook:${{ secrets.DFLOOK_PAT }}
+      github.com=graham:${{ secrets.GITHUB_PAT }}  
+  ```
+
+  - Type: string
+  - Optional
+
 ## Outputs
 
 An action output will be created for each output of the terraform configuration.
diff --git a/action.yaml b/action.yaml
index 9472d76..289cf22 100644
--- a/action.yaml
+++ b/action.yaml
@@ -48,7 +48,7 @@ inputs:
 
 runs:
   using: docker
-  image: docker://danielflook/terraform-github-actions:v1.9.3
+  image: docker://danielflook/terraform-github-actions:v1.10.0
   entrypoint: /entrypoints/apply.sh
 
 branding: