diff --git a/Dockerfile b/Dockerfile
index 06a65d2..cf5a615 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ LABEL version="1.0"
 
 ENV DEBIAN_FRONTEND="noninteractive"
 ENV TERRAGRUNT_VERSION="v0.77.22"
-ENV TF_VERSION="1.11.4"
+ENV TF_VERSION="1.15.3"
 ENV ARCH="amd64"
 ENV OS="linux"
 ENV BINARY_NAME="terragrunt_${OS}_${ARCH}"
diff --git a/README.md b/README.md
index aab6755..0d37735 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ This Docker image is based on Ubuntu 24.04 and includes popular IAC tools common
 
 | Tool       | Version  | Description                                                                                      |
 | ---------- | -------- | ------------------------------------------------------------------------------------------------ |
-| Terraform  | 1.11.4   | Infrastructure as Code tool for building, changing, and versioning infrastructure                |
+| Terraform  | 1.15.3   | Infrastructure as Code tool for building, changing, and versioning infrastructure                |
 | Terragrunt | v0.77.22 | Thin wrapper for Terraform that provides extra tools for working with multiple Terraform modules |
 | Ansible    | Latest   | Automation platform for configuration management, application deployment, and task automation    |
 | vault      | Latest   | Hashicorp vault client for managing vault resources                                              |