diff --git a/go/terminalstate/tracker.go b/go/internal/terminalstate/tracker.go
similarity index 100%
rename from go/terminalstate/tracker.go
rename to go/internal/terminalstate/tracker.go
diff --git a/go/terminalstate/tracker_test.go b/go/internal/terminalstate/tracker_test.go
similarity index 100%
rename from go/terminalstate/tracker_test.go
rename to go/internal/terminalstate/tracker_test.go
diff --git a/go/webterm/coverage_boost_test.go b/go/webterm/coverage_boost_test.go
index b783918..f66636c 100644
--- a/go/webterm/coverage_boost_test.go
+++ b/go/webterm/coverage_boost_test.go
@@ -20,7 +20,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/rcarmo/webterm-go-port/terminalstate"
+	"github.com/rcarmo/webterm-go-port/internal/terminalstate"
 )
 
 func newUnixHTTPTestServer(t *testing.T, handler http.Handler) (string, func()) {
diff --git a/go/webterm/docker_exec_session.go b/go/webterm/docker_exec_session.go
index 3b34a56..45abc51 100644
--- a/go/webterm/docker_exec_session.go
+++ b/go/webterm/docker_exec_session.go
@@ -13,7 +13,7 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/rcarmo/webterm-go-port/terminalstate"
+	"github.com/rcarmo/webterm-go-port/internal/terminalstate"
 )
 
 type DockerExecSpec struct {
diff --git a/go/webterm/session.go b/go/webterm/session.go
index ee232ae..b34b3c1 100644
--- a/go/webterm/session.go
+++ b/go/webterm/session.go
@@ -1,7 +1,7 @@
 package webterm
 
 import (
-	"github.com/rcarmo/webterm-go-port/terminalstate"
+	"github.com/rcarmo/webterm-go-port/internal/terminalstate"
 )
 
 type SessionConnector interface {
diff --git a/go/webterm/svg_exporter.go b/go/webterm/svg_exporter.go
index 7947061..c31e974 100644
--- a/go/webterm/svg_exporter.go
+++ b/go/webterm/svg_exporter.go
@@ -5,7 +5,7 @@ import (
 	"html"
 	"strings"
 
-	"github.com/rcarmo/webterm-go-port/terminalstate"
+	"github.com/rcarmo/webterm-go-port/internal/terminalstate"
 )
 
 var ansiColors = map[string]string{
diff --git a/go/webterm/svg_exporter_test.go b/go/webterm/svg_exporter_test.go
index 2a68038..d856734 100644
--- a/go/webterm/svg_exporter_test.go
+++ b/go/webterm/svg_exporter_test.go
@@ -4,7 +4,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/rcarmo/webterm-go-port/terminalstate"
+	"github.com/rcarmo/webterm-go-port/internal/terminalstate"
 )
 
 func TestRenderTerminalSVG(t *testing.T) {
diff --git a/go/webterm/terminal_session.go b/go/webterm/terminal_session.go
index 49d9432..b00469f 100644
--- a/go/webterm/terminal_session.go
+++ b/go/webterm/terminal_session.go
@@ -10,7 +10,7 @@ import (
 
 	"github.com/creack/pty"
 	"github.com/google/shlex"
-	"github.com/rcarmo/webterm-go-port/terminalstate"
+	"github.com/rcarmo/webterm-go-port/internal/terminalstate"
 )
 
 type TerminalSession struct {
diff --git a/go/webterm/test_helpers_test.go b/go/webterm/test_helpers_test.go
index 0d78499..a8a0bfa 100644
--- a/go/webterm/test_helpers_test.go
+++ b/go/webterm/test_helpers_test.go
@@ -3,7 +3,7 @@ package webterm
 import (
 	"sync"
 
-	"github.com/rcarmo/webterm-go-port/terminalstate"
+	"github.com/rcarmo/webterm-go-port/internal/terminalstate"
 )
 
 type fakeSession struct {