diff --git a/data_for_test.go b/data_for_test.go
index 8250e15..4cc86bf 100644
--- a/data_for_test.go
+++ b/data_for_test.go
@@ -1373,4 +1373,29 @@ var suites = []FixtureSuite{
 			},
 		},
 	},
+	// version flag tests
+	{
+		{
+			Name: "version subcommand",
+			Config: FixtureConfig{
+				CliArgs: []string{"version"},
+			},
+			Expect: Results{
+				CliOutput:   "\n",
+				CliOutputRe: regexp.MustCompile(`\S+`),
+				ExitCode:    0,
+			},
+		},
+		{
+			Name: "--version flag",
+			Config: FixtureConfig{
+				CliArgs: []string{"--version"},
+			},
+			Expect: Results{
+				CliOutput:   "\n",
+				CliOutputRe: regexp.MustCompile(`otel-cli version \S+`),
+				ExitCode:    0,
+			},
+		},
+	},
 }
diff --git a/otelcli/root.go b/otelcli/root.go
index db8ba6c..7b3830a 100644
--- a/otelcli/root.go
+++ b/otelcli/root.go
@@ -59,6 +59,7 @@ func createRootCmd(config *Config) *cobra.Command {
 
 	cobra.EnableCommandSorting = false
 	rootCmd.Flags().SortFlags = false
+	rootCmd.Version = config.Version
 
 	Diag.NumArgs = len(os.Args) - 1
 	Diag.CliArgs = []string{}