diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 371e8b48..c2ef45f4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,17 +10,16 @@ jobs:
     name: Validate source code with linters
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v5
         with:
           go-version-file: 'go.mod'
       - name: Run lint
-        uses: golangci/golangci-lint-action@v3
+        uses: golangci/golangci-lint-action@v6
         with:
           version: latest
-          skip-build-cache: true
-          skip-pkg-cache: true
+          skip-cache: true
 
   test:
     name: Run the tests suite
@@ -30,9 +29,9 @@ jobs:
       matrix:
         os: [ ubuntu-latest, macOS-latest, windows-latest ]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v5
         with:
           go-version-file: 'go.mod'
       - name: Run tests with coverage
diff --git a/go.mod b/go.mod
index cb935748..85ce8c3d 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.21
 
 require (
 	github.com/MakeNowJust/heredoc v1.0.0
-	github.com/bluekeyes/go-gitdiff v0.7.2
+	github.com/bluekeyes/go-gitdiff v0.7.3
 	github.com/fatih/color v1.17.0
 	github.com/google/go-cmp v0.6.0
 	github.com/hako/durafmt v0.0.0-20210608085754-5c1018a4e16b
diff --git a/go.sum b/go.sum
index 4ded6a32..f9eb2270 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,7 @@
 github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ4pzQ=
 github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
-github.com/bluekeyes/go-gitdiff v0.7.2 h1:42jrcVZdjjxXtVsFNYTo/I6T1ZvIiQL+iDDLiH904hw=
-github.com/bluekeyes/go-gitdiff v0.7.2/go.mod h1:QpfYYO1E0fTVHVZAZKiRjtSGY9823iCdvGXBcEzHGbM=
+github.com/bluekeyes/go-gitdiff v0.7.3 h1:SElKwtm/IQPOwKs0vdowW5uAlip+P+jatagmUU8E0r4=
+github.com/bluekeyes/go-gitdiff v0.7.3/go.mod h1:QpfYYO1E0fTVHVZAZKiRjtSGY9823iCdvGXBcEzHGbM=
 github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
diff --git a/internal/engine/tokenmutator_test.go b/internal/engine/tokenmutator_test.go
index fca64335..f2eeb65c 100644
--- a/internal/engine/tokenmutator_test.go
+++ b/internal/engine/tokenmutator_test.go
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 The Gremlins Authors
+ * Copyright 2024 The Gremlins Authors
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -41,7 +41,7 @@ func TestMutantApplyAndRollback(t *testing.T) {
 	filePath := "sourceFile.go"
 	fileFullPath := filepath.Join(workdir, filePath)
 
-	err := os.WriteFile(fileFullPath, []byte(rollbackWant), os.ModePerm)
+	err := os.WriteFile(fileFullPath, []byte(rollbackWant), 0600)
 	if err != nil {
 		t.Fatal(err)
 	}