diff --git a/.github/workflows/check-formatting.yml b/.github/workflows/check-formatting.yml
index 0f75d0a..d4ab857 100644
--- a/.github/workflows/check-formatting.yml
+++ b/.github/workflows/check-formatting.yml
@@ -16,7 +16,7 @@ jobs:
 
       - uses: leafo/gh-actions-lua@6919171ccf181b826f44b9bca76307b577217377
         with:
-          luaVersion: 5.4
+          luaVersion: 5.5
 
       - uses: leafo/gh-actions-luarocks@35d062def313a7699a0d513e996bcf4352f05389
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f95bab8..31c30cf 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,13 +10,17 @@ on:
 jobs:
   test:
     runs-on: ubuntu-24.04
+    strategy:
+      matrix:
+        lua: [5.3, 5.4, 5.5]
+    name: Test (Lua ${{ matrix.lua }})
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
 
       - uses: leafo/gh-actions-lua@6919171ccf181b826f44b9bca76307b577217377
         with:
-          luaVersion: 5.4
+          luaVersion: ${{ matrix.lua }}
 
       - uses: leafo/gh-actions-luarocks@35d062def313a7699a0d513e996bcf4352f05389