diff --git a/pkg/registrar/registrar.go b/internal/registrar/registrar.go
similarity index 100%
rename from pkg/registrar/registrar.go
rename to internal/registrar/registrar.go
diff --git a/pkg/registrar/registrar_test.go b/internal/registrar/registrar_test.go
similarity index 100%
rename from pkg/registrar/registrar_test.go
rename to internal/registrar/registrar_test.go
diff --git a/pkg/cri/server/service.go b/pkg/cri/server/service.go
index d9ef0f464..4fb8e28b7 100644
--- a/pkg/cri/server/service.go
+++ b/pkg/cri/server/service.go
@@ -32,6 +32,7 @@ import (
 
 	containerd "github.com/containerd/containerd/v2/client"
 	"github.com/containerd/containerd/v2/core/sandbox"
+	"github.com/containerd/containerd/v2/internal/registrar"
 	criconfig "github.com/containerd/containerd/v2/pkg/cri/config"
 	"github.com/containerd/containerd/v2/pkg/cri/nri"
 	"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox"
@@ -43,7 +44,6 @@ import (
 	ctrdutil "github.com/containerd/containerd/v2/pkg/cri/util"
 	"github.com/containerd/containerd/v2/pkg/oci"
 	osinterface "github.com/containerd/containerd/v2/pkg/os"
-	"github.com/containerd/containerd/v2/pkg/registrar"
 )
 
 // defaultNetworkPlugin is used for the default CNI configuration
diff --git a/pkg/cri/server/service_test.go b/pkg/cri/server/service_test.go
index b5c2d9ab6..f22f29a1b 100644
--- a/pkg/cri/server/service_test.go
+++ b/pkg/cri/server/service_test.go
@@ -24,13 +24,13 @@ import (
 
 	"github.com/containerd/containerd/v2/api/types"
 	"github.com/containerd/containerd/v2/core/sandbox"
+	"github.com/containerd/containerd/v2/internal/registrar"
 	containerstore "github.com/containerd/containerd/v2/pkg/cri/store/container"
 	"github.com/containerd/containerd/v2/pkg/cri/store/label"
 	sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
 	servertesting "github.com/containerd/containerd/v2/pkg/cri/testing"
 	"github.com/containerd/containerd/v2/pkg/errdefs"
 	ostesting "github.com/containerd/containerd/v2/pkg/os/testing"
-	"github.com/containerd/containerd/v2/pkg/registrar"
 	"github.com/containerd/containerd/v2/platforms"
 )