diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 62ab9e0..3def256 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: [ '1.17', '1.16', '1.15' ]
+        go: [ '1.17', '1.16' ]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
@@ -32,7 +32,7 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        go: [ '1.17', '1.16', '1.15' ]
+        go: [ '1.17', '1.16' ]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
@@ -41,14 +41,14 @@ jobs:
       - name: Install libgit2
         run: |
           brew install libssh2
-          brew install libgit2
+          brew install carlsberg/tap/libgit2@1.1.0
       - run: go build
 
   # build-windows:
   #   runs-on: windows-latest
   #   strategy:
   #     matrix:
-  #       go: [ '1.17', '1.16', '1.15' ]
+  #       go: [ '1.17', '1.16' ]
   #   steps:
   #     - uses: actions/checkout@v2
   #     - uses: actions/setup-go@v2
@@ -78,4 +78,4 @@ jobs:
   #         export PATH="/c/msys64/:/c/msys64/usr/:/c/msys64/usr/bin:$PATH" 
   #         go get -v ./...
   #         ./make.bat build
-  #     - run: go build
\ No newline at end of file
+  #     - run: go build
diff --git a/README.md b/README.md
index 5ffb661..5685242 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # git-semver
 
-[![Build](https://github.com/crqra/git-semver/actions/workflows/build.yml/badge.svg)](https://github.com/crqra/git-semver/actions/workflows/build.yml) [![LoC](https://tokei.rs/b1/github/crqra/git-semver)](https://github.com/crqra/git-semver)
+[![Build](https://github.com/carlsberg/git-semver/actions/workflows/build.yml/badge.svg)](https://github.com/carlsberg/git-semver/actions/workflows/build.yml) [![LoC](https://tokei.rs/b1/github/crqra/git-semver)](https://github.com/crqra/git-semver)
 
 
 > Git extension to easily manage your project's version based on [Semantic Versioning][semver] and [Conventional Commits][conventional-commits]
diff --git a/cmd/git-semver/git-semver.go b/cmd/git-semver/git-semver.go
index 55eaecc..5219a0c 100644
--- a/cmd/git-semver/git-semver.go
+++ b/cmd/git-semver/git-semver.go
@@ -3,6 +3,7 @@ package git_semver
 import (
 	"fmt"
 	"log"
+	"strings"
 
 	"github.com/Masterminds/semver"
 	git_semver "github.com/crqra/git-semver/internal/git-semver"
@@ -61,6 +62,26 @@ var bumpCmd = &cobra.Command{
 
 		nextVersion := git_semver.BumpVersion(*latestVersion, increment)
 
+		versionFiles := make([]git_semver.VersionFile, 0)
+		versionFilenamesAndKeys, err := cmd.Flags().GetStringArray("version-file")
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		for _, filenameAndKey := range versionFilenamesAndKeys {
+			slice := strings.Split(filenameAndKey, ":")
+
+			if len(slice) != 2 {
+				log.Fatalf("%s is not correctly formatted. Should be `filename:key`", filenameAndKey)
+			}
+
+			versionFiles = append(versionFiles, git_semver.VersionFile{Filename: slice[0], Key: slice[1]})
+		}
+
+		if err := git_semver.UpdateVersionFiles(repo, versionFiles, *latestVersion, nextVersion); err != nil {
+			log.Fatal(err)
+		}
+
 		if err := git_semver.TagVersion(repo, nextVersion); err != nil {
 			log.Fatal(err)
 		}
@@ -148,4 +169,6 @@ func init() {
 	rootCmd.AddCommand(bumpCmd)
 	rootCmd.AddCommand(nextCmd)
 	rootCmd.AddCommand(latestCmd)
+
+	bumpCmd.Flags().StringArrayP("version-file", "f", make([]string, 0), "Specify version files to be updated with the new version in the format `filename:key` (i.e. `package.json:\"version\"`)")
 }
diff --git a/internal/git-semver/mod.go b/internal/git-semver/mod.go
index bcb07e1..33f1639 100644
--- a/internal/git-semver/mod.go
+++ b/internal/git-semver/mod.go
@@ -2,6 +2,8 @@ package git_semver
 
 import (
 	"fmt"
+	"io/fs"
+	"io/ioutil"
 	"log"
 	"regexp"
 	"sort"
@@ -13,6 +15,10 @@ import (
 
 type Increment int64
 type Change string
+type VersionFile struct {
+	Filename string
+	Key      string
+}
 
 const (
 	Major Increment = 4
@@ -63,6 +69,54 @@ func ListVersions(repo *git.Repository) ([]*semver.Version, error) {
 	return versions, nil
 }
 
+func CreateCommit(repo *git.Repository, message string) error {
+	sig, err := repo.DefaultSignature()
+	if err != nil {
+		return err
+	}
+
+	head, err := repo.Head()
+	if err != nil {
+		return err
+	}
+
+	idx, err := repo.Index()
+	if err != nil {
+		return err
+	}
+
+	idx.AddAll(make([]string, 0), git.IndexAddDefault, func(_, _ string) int {
+		return 0
+	})
+
+	treeId, err := idx.WriteTree()
+	if err != nil {
+		return err
+	}
+
+	err = idx.Write()
+	if err != nil {
+		return err
+	}
+
+	tree, err := repo.LookupTree(treeId)
+	if err != nil {
+		return err
+	}
+
+	commitTarget, err := repo.LookupCommit(head.Target())
+	if err != nil {
+		return err
+	}
+
+	_, err = repo.CreateCommit("refs/heads/main", sig, sig, message, tree, commitTarget)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func ListCommits(repo *git.Repository) ([]*git.Commit, error) {
 	revwalk, err := repo.Walk()
 	if err != nil {
@@ -195,3 +249,50 @@ func PushVersionTagToRemotes(repo *git.Repository, version semver.Version) error
 
 	return nil
 }
+
+func UpdateVersionFiles(repo *git.Repository, versionFiles []VersionFile, currentVersion semver.Version, nextVersion semver.Version) error {
+	if len(versionFiles) == 0 {
+		return nil
+	}
+
+	for _, versionFile := range versionFiles {
+		err := updateVersionFileVersion(versionFile, currentVersion, nextVersion)
+		if err != nil {
+			return err
+		}
+	}
+
+	err := CreateCommit(repo, fmt.Sprintf("bump: %s -> %s", currentVersion.String(), nextVersion.String()))
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func regexForVersionFileKey(key string, currentVersion semver.Version) (*regexp.Regexp, error) {
+	return regexp.Compile(fmt.Sprintf("%s(.{1,})?%s", key, currentVersion.String()))
+}
+
+func updateVersionFileVersion(versionFile VersionFile, currentVersion semver.Version, nextVersion semver.Version) error {
+	r, err := regexForVersionFileKey(versionFile.Key, currentVersion)
+	if err != nil {
+		return err
+	}
+
+	contents, err := ioutil.ReadFile(versionFile.Filename)
+	if err != nil {
+		return err
+	}
+
+	match := string(r.Find(contents))
+	newVersionString := strings.Replace(match, currentVersion.String(), nextVersion.String(), 1)
+	newContents := strings.Replace(string(contents), match, newVersionString, 1)
+
+	err = ioutil.WriteFile(versionFile.Filename, []byte(newContents), fs.ModePerm)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}