diff --git a/cmd/edit.go b/cmd/edit.go
new file mode 100644
index 0000000..d04341f
--- /dev/null
+++ b/cmd/edit.go
@@ -0,0 +1,46 @@
+/*
+Copyright © 2020 James Walker <walkah@walkah.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/walkah/workon/tmux"
+)
+
+// editCmd represents the edit command
+var editCmd = &cobra.Command{
+	Use:   "edit [PROJECT]",
+	Short: "Edit an existing project",
+	Args:  cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		err := tmux.EditProject(args[0])
+		if err != nil {
+			fmt.Println("Unable to edit project:", err)
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(editCmd)
+}
diff --git a/tmux/project.go b/tmux/project.go
index 1a0e242..ad29045 100644
--- a/tmux/project.go
+++ b/tmux/project.go
@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"strings"
+	"syscall"
 
 	"github.com/mitchellh/go-homedir"
 	"gopkg.in/yaml.v2"
@@ -133,6 +134,27 @@ func NewProject(name string) error {
 	return project.Save()
 }
 
+func EditProject(name string) error {
+	fileName := getConfigFilePath(name)
+
+	_, err := os.Stat(fileName)
+	if err != nil {
+		return errors.New("Config file does not exist")
+	}
+
+	editorName := os.Getenv("EDITOR")
+	if editorName == "" {
+		return errors.New("EDITOR variable not defined")
+	}
+
+	editor, err := exec.LookPath(editorName)
+	if err != nil {
+		return err
+	}
+
+	return syscall.Exec(editor, []string{editorName, fileName}, os.Environ())
+}
+
 func (p *Project) Save() error {
 	fileName := getConfigFilePath(p.Name)