diff --git a/.github/workflows/workflow.yaml b/.github/workflows/workflow.yaml
index be9fb97..6fafcd6 100644
--- a/.github/workflows/workflow.yaml
+++ b/.github/workflows/workflow.yaml
@@ -5,7 +5,7 @@
       "runs-on": "${{ matrix.platform }}-${{ matrix.version }}",
       "steps": [
         {
-          "uses": "actions/checkout@v3"
+          "uses": "actions/checkout@v4"
         },
         {
           "run": "mkdir artifact"
@@ -116,7 +116,7 @@
       "runs-on": "ubuntu-22.04",
       "steps": [
         {
-          "uses": "actions/checkout@v3"
+          "uses": "actions/checkout@v4"
         },
         {
           "run": "cabal check"
@@ -128,7 +128,7 @@
       "runs-on": "ubuntu-22.04",
       "steps": [
         {
-          "uses": "actions/checkout@v3"
+          "uses": "actions/checkout@v4"
         },
         {
           "uses": "haskell/actions/hlint-setup@v2",
@@ -143,7 +143,7 @@
       "runs-on": "ubuntu-22.04",
       "steps": [
         {
-          "uses": "actions/checkout@v3"
+          "uses": "actions/checkout@v4"
         },
         {
           "uses": "haskell-actions/run-ormolu@v14"