diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b1e88cb..e3ebf0d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        luaVersion: ["5.1.5", "5.2.4", "5.3.6", "5.4.8", "luajit", "luajit-2.0", "luajit-2.1", "luajit-2.0.5", "luajit-2.1.0-beta3", "luajit-openresty", "5.1", "5.4", "5.5"]
+        luaVersion: ["5.1.5", "5.2.4", "5.3.6", "5.4.8", "5.5.0", "luajit", "luajit-2.0", "luajit-2.1", "luajit-2.0.5", "luajit-2.1.0-beta3", "luajit-openresty", "5.1", "5.4", "5.5"]
         machineTag: ["ubuntu-latest", "macos-latest", "windows-latest"]
         exclude:
           - luaVersion: "luajit-2.0"
@@ -30,7 +30,7 @@ jobs:
     steps:
     - uses: actions/checkout@main
 
-    - uses: ilammy/msvc-dev-cmd@v1
+    - uses: step-security/msvc-dev-cmd@v1
 
     - name: Build Lua
       uses: './'
@@ -47,7 +47,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        luaVersion: ["5.1.5", "5.2.4", "5.3.6", "5.4.8", "luajit", "luajit-2.0", "luajit-2.1", "luajit-2.0.5", "luajit-2.1.0-beta3", "luajit-openresty", "5.1", "5.4"]
+        luaVersion: ["5.1.5", "5.2.4", "5.3.6", "5.4.8", "5.5.0", "luajit", "luajit-2.0", "luajit-2.1", "luajit-2.0.5", "luajit-2.1.0-beta3", "luajit-openresty", "5.1", "5.4"]
         machineTag: ["ubuntu-latest", "macos-latest", "windows-latest"]
         exclude:
           - luaVersion: "luajit-2.0"
@@ -64,7 +64,7 @@ jobs:
     steps:
     - uses: actions/checkout@main
 
-    - uses: ilammy/msvc-dev-cmd@v1
+    - uses: step-security/msvc-dev-cmd@v1
 
     - name: Get Lua from cache
       uses: './'
diff --git a/README.md b/README.md
index eafb789..f11e160 100644
--- a/README.md
+++ b/README.md
@@ -19,16 +19,16 @@ Other Lua GitHub actions:
 
 ## Usage
 
-Install Lua: (Will typically default to the latest release, 5.4.8 as of this readme)
+Install Lua: (Will typically default to the latest release, 5.5.0 as of this readme)
 
 ```yaml
-- uses: luarocks/gh-actions-lua@v11
+- uses: luarocks/gh-actions-lua@v12
 ```
 
 Install specific version of Lua:
 
 ```yaml
-- uses: luarocks/gh-actions-lua@v11
+- uses: luarocks/gh-actions-lua@v12
   with:
     luaVersion: "5.1.5"
 ```
@@ -36,17 +36,17 @@ Install specific version of Lua:
 Install specific version of LuaJIT:
 
 ```yaml
-- uses: luarocks/gh-actions-lua@v11
+- uses: luarocks/gh-actions-lua@v12
   with:
     luaVersion: "luajit-2.1.0-beta3"
 ```
 
 When using Windows the following prerequisite action must be run before
-building Lua: [`ilammy/msvc-dev-cmd@v1`](https://github.com/ilammy/msvc-dev-cmd). It is safe to
+building Lua: [`step-security/msvc-dev-cmd@v1`](https://github.com/step-security/msvc-dev-cmd). It is safe to
 include this line on non-Windows platforms, as the action will do nothing in those cases.
 
 ```yaml
-- uses: ilammy/msvc-dev-cmd@v1
+- uses: step-security/msvc-dev-cmd@v1
 - uses: luarocks/gh-actions-lua@v11
 ```
 
@@ -54,7 +54,7 @@ include this line on non-Windows platforms, as the action will do nothing in tho
 
 ### `luaVersion`
 
-**Default**: `"5.4"`
+**Default**: `"5.5"`
 
 Specifies the version of Lua to install. The version name instructs the action
 where to download the source from.
@@ -65,6 +65,7 @@ Examples of versions:
 * `"5.2.4"`
 * `"5.3.5"`
 * `"5.4.1"`
+* `"5.5.0"`
 * `"luajit-2.0"`
 * `"luajit-2.1"`
 * `"luajit-master"`
@@ -78,7 +79,7 @@ The version specifies where the source is downloaded from:
 
 **Version aliases**
 
-You can use shorthand `5.1`, `5.2`, `5.3`, `5.4`, `luajit` version aliases to point to the
+You can use shorthand `5.1`, `5.2`, `5.3`, `5.4`, `5.5`, `luajit` version aliases to point to the
 latest (or recent) version of Lua for that version.
 
 ### `luaCompileFlags`
@@ -90,7 +91,7 @@ Additional flags to pass to `make` when building Lua.
 Example value:
 
 ```yaml
-- uses: luarocks/gh-actions-lua@v11
+- uses: luarocks/gh-actions-lua@v12
   with:
     luaVersion: 5.3
     luaCompileFlags: LUA_CFLAGS="-DLUA_INT_TYPE=LUA_INT_INT"
@@ -101,7 +102,7 @@ Example value:
 ## Full Example
 
 This example is for running tests on a Lua module that uses LuaRocks for
-dependencies and [busted](https://olivinelabs.com/busted/) for a test suite.
+dependencies and [busted](https://github.com/lunarmodules/busted) for a test suite.
 
 Create `.github/workflows/test.yml` in your repository:
 
@@ -115,13 +116,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v7
 
-    - uses: luarocks/gh-actions-lua@v11
+    - uses: luarocks/gh-actions-lua@v12
       with:
         luaVersion: "5.1.5"
 
-    - uses: luarocks/gh-actions-luarocks@v6
+    - uses: luarocks/gh-actions-luarocks@v7
 
     - name: build
       run: |
@@ -153,8 +154,8 @@ jobs:
         luaVersion: ["5.1.5", "5.2.4", "luajit-2.1.0-beta3"]
 
     steps:
-    - uses: actions/checkout@v4
-    - uses: luarocks/gh-actions-lua@v11
+    - uses: actions/checkout@v7
+    - uses: luarocks/gh-actions-lua@v12
       with:
         luaVersion: ${{ matrix.luaVersion }}
 
diff --git a/action.yml b/action.yml
index 68da5d4..e8358b5 100644
--- a/action.yml
+++ b/action.yml
@@ -10,7 +10,7 @@ inputs:
   luaVersion:
     description: "The version of Lua to install, must be available on https://www.lua.org/ftp/ or http://luajit.org/download.html"
     required: false
-    default: "5.4"
+    default: "5.5"
   luaCompileFlags:
     description: "Command line flags passed to make when building Lua"
     required: false