diff --git a/pkg/release/publish_test.go b/pkg/release/publish_test.go
index ed41c0d95801..989d0e61941f 100644
--- a/pkg/release/publish_test.go
+++ b/pkg/release/publish_test.go
@@ -337,7 +337,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 	}{
 		{ // success same version
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.24.0",
@@ -348,7 +348,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 
 		{ // success version > gcsVersion (patch)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.24.1",
@@ -358,7 +358,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version < gcsVersion (patch)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.24.0",
@@ -369,7 +369,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 
 		{ // success version > gcsVersion (minor)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.25.0",
@@ -379,7 +379,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version < gcsVersion (minor)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.23.0",
@@ -390,7 +390,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 
 		{ // success version = gcsVersion (with build version)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-7+c4e17abb04728e",
@@ -400,7 +400,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version > gcsVersion (with build version)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-9+aaaaaabb04728e",
@@ -410,7 +410,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version < gcsVersion (with build version)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-7+c4e17abb04728e",
@@ -420,7 +420,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version > gcsVersion (with build version)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.1-1+aaaaaabb04728e",
@@ -430,7 +430,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version = gcsVersion (with build version, prerelease)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-rc.1.9+3fb5377b25ec51",
@@ -440,7 +440,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version > gcsVersion (with build version, prerelease)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-rc.1.10+3fb5377b25ec51",
@@ -450,7 +450,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version < gcsVersion (with build version, prerelease)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-rc.1.9+3fb5377b25ec51",
@@ -460,7 +460,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version < gcsVersion (with build version, prerelease)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-beta.1.9+3fb5377b25ec51",
@@ -470,7 +470,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version > gcsVersion (with build version, prerelease)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-rc.1.9+3fb5377b25ec51",
@@ -480,7 +480,7 @@ func TestVerifyLatestUpdate(t *testing.T) {
 		},
 		{ // success version > gcsVersion (with build version, stable and prerelease)
 			prepare: func(mock *releasefakes.FakePublisherClient, gcsVersion string) {
-				mock.NormalizePath("", "")
+				mock.NormalizePathReturns("", nil)
 				mock.GSUtilOutputReturns(gcsVersion, nil)
 			},
 			version:     "v1.28.0-7+c4e17abb04728e",