diff --git a/.github/workflows/setup-tofu.yml b/.github/workflows/setup-tofu.yml
index 6de004e..29e2416 100644
--- a/.github/workflows/setup-tofu.yml
+++ b/.github/workflows/setup-tofu.yml
@@ -123,14 +123,14 @@ jobs:
     - name: Validate OpenTofu Credentials (Windows)
       if: runner.os == 'Windows'
       run: |
-        cat ${APPDATA}/terraform.rc | grep 'credentials "app.terraform.io"'
-        cat ${APPDATA}/terraform.rc | grep 'token = "${{ env.TF_CLOUD_API_TOKEN }}"'
+        cat ${APPDATA}/tofu.rc | grep 'credentials "app.terraform.io"'
+        cat ${APPDATA}/tofu.rc | grep 'token = "${{ env.TF_CLOUD_API_TOKEN }}"'
 
     - name: Validate Teraform Credentials (Linux & macOS)
       if: runner.os != 'Windows'
       run: |
-        cat ${HOME}/.terraformrc | grep 'credentials "app.terraform.io"'
-        cat ${HOME}/.terraformrc | grep 'token = "${{ env.TF_CLOUD_API_TOKEN }}"'
+        cat ${HOME}/.tofurc | grep 'credentials "app.terraform.io"'
+        cat ${HOME}/.tofurc | grep 'token = "${{ env.TF_CLOUD_API_TOKEN }}"'
 
   tofu-credentials-enterprise:
     name: 'OpenTofu Enterprise Credentials'
@@ -153,14 +153,14 @@ jobs:
     - name: Validate OpenTofu Credentials (Windows)
       if: runner.os == 'Windows'
       run: |
-        cat ${APPDATA}/terraform.rc | grep 'credentials "tofu.example.com"'
-        cat ${APPDATA}/terraform.rc | grep 'token = "${{ env.TF_CLOUD_API_TOKEN }}"'
+        cat ${APPDATA}/tofu.rc | grep 'credentials "tofu.example.com"'
+        cat ${APPDATA}/tofu.rc | grep 'token = "${{ env.TF_CLOUD_API_TOKEN }}"'
 
     - name: Validate Teraform Credentials (Linux & macOS)
       if: runner.os != 'Windows'
       run: |
-        cat ${HOME}/.terraformrc | grep 'credentials "tofu.example.com"'
-        cat ${HOME}/.terraformrc | grep 'token = "${{ env.TF_CLOUD_API_TOKEN }}"'
+        cat ${HOME}/.tofurc | grep 'credentials "tofu.example.com"'
+        cat ${HOME}/.tofurc | grep 'token = "${{ env.TF_CLOUD_API_TOKEN }}"'
 
   tofu-credentials-none:
     name: 'OpenTofu No Credentials'
@@ -178,12 +178,12 @@ jobs:
     - name: Validate OpenTofu Credentials (Windows)
       if: runner.os == 'Windows'
       run: |
-        [[ -f ${APPDATA}/terraform.rc ]] || exit 0
+        [[ -f ${APPDATA}/tofu.rc ]] || exit 0
 
     - name: Validate Teraform Credentials (Linux & macOS)
       if: runner.os != 'Windows'
       run: |
-        [[ -f ${HOME}/.terraformrc ]] || exit 0
+        [[ -f ${HOME}/.tofurc ]] || exit 0
 
   tofu-arguments:
     name: 'OpenTofu Arguments'
diff --git a/README.md b/README.md
index dc79bd0..21ff839 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 The `opentofu/setup-opentofu` action sets up OpenTofu CLI in your GitHub Actions workflow by:
 
 - Downloading the latest version of OpenTofu CLI and adding it to the `PATH`.
-- Configuring the [CLI configuration file](https://www.terraform.io/docs/commands/cli-config.html) with a Terraform Cloud/Enterprise hostname and API token.
+- Configuring the [CLI configuration file](https://opentofu.org/docs/cli/config/config-file/) with a Terraform Cloud/Enterprise hostname and API token.
 - Installing a wrapper script to wrap subsequent calls of the `tofu` binary and expose its STDOUT, STDERR, and exit code as outputs named `stdout`, `stderr`, and `exitcode` respectively. (This can be optionally skipped if subsequent steps in the same job do not need to access the results of
   OpenTofu commands.)
 
diff --git a/dist/index.js b/dist/index.js
index 4ae4071..9bc576d 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -180,8 +180,8 @@ credentials "${credentialsHostname}" {
 
   // default to OS-specific path
   let credsFile = osPlat === 'win32'
-    ? `${process.env.APPDATA}/terraform.rc`
-    : `${process.env.HOME}/.terraformrc`;
+    ? `${process.env.APPDATA}/tofu.rc`
+    : `${process.env.HOME}/.tofurc`;
 
   // override with TF_CLI_CONFIG_FILE environment variable
   credsFile = process.env.TF_CLI_CONFIG_FILE ? process.env.TF_CLI_CONFIG_FILE : credsFile;
diff --git a/lib/setup-tofu.js b/lib/setup-tofu.js
index 15dff56..158bdfd 100644
--- a/lib/setup-tofu.js
+++ b/lib/setup-tofu.js
@@ -105,8 +105,8 @@ credentials "${credentialsHostname}" {
 
   // default to OS-specific path
   let credsFile = osPlat === 'win32'
-    ? `${process.env.APPDATA}/terraform.rc`
-    : `${process.env.HOME}/.terraformrc`;
+    ? `${process.env.APPDATA}/tofu.rc`
+    : `${process.env.HOME}/.tofurc`;
 
   // override with TF_CLI_CONFIG_FILE environment variable
   credsFile = process.env.TF_CLI_CONFIG_FILE ? process.env.TF_CLI_CONFIG_FILE : credsFile;