diff --git a/go.mod b/go.mod
index 247affbac86..7a81595616e 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.20
 
 require (
 	cloud.google.com/go v0.115.0
-	cloud.google.com/go/auth v0.6.0
+	cloud.google.com/go/auth v0.6.1
 	cloud.google.com/go/auth/oauth2adapt v0.2.2
 	cloud.google.com/go/compute/metadata v0.3.0
 	github.com/google/go-cmp v0.6.0
diff --git a/go.sum b/go.sum
index c956909f6f0..2463779ebb9 100644
--- a/go.sum
+++ b/go.sum
@@ -1,8 +1,8 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.115.0 h1:CnFSK6Xo3lDYRoBKEcAtia6VSC837/ZkJuRduSFnr14=
 cloud.google.com/go v0.115.0/go.mod h1:8jIM5vVgoAEoiVxQ/O4BFTfHqulPZgs/ufEzMcFMdWU=
-cloud.google.com/go/auth v0.6.0 h1:5x+d6b5zdezZ7gmLWD1m/xNjnaQ2YDhmIz/HH3doy1g=
-cloud.google.com/go/auth v0.6.0/go.mod h1:b4acV+jLQDyjwm4OXHYjNvRi4jvGBzHWJRtJcy+2P4g=
+cloud.google.com/go/auth v0.6.1 h1:T0Zw1XM5c1GlpN2HYr2s+m3vr1p2wy+8VN+Z1FKxW38=
+cloud.google.com/go/auth v0.6.1/go.mod h1:eFHG7zDzbXHKmjJddFG/rBlcGp6t25SwRUiEQSlO4x4=
 cloud.google.com/go/auth/oauth2adapt v0.2.2 h1:+TTV8aXpjeChS9M+aTtN/TjdQnzJvmzKFt//oWu7HX4=
 cloud.google.com/go/auth/oauth2adapt v0.2.2/go.mod h1:wcYjgpZI9+Yu7LyYBg4pqSiaRkfEK3GQcpb7C/uyF1Q=
 cloud.google.com/go/compute/metadata v0.3.0 h1:Tz+eQXMEqDIKRsmY3cHTL6FVaynIjX2QxYC4trgAKZc=
diff --git a/transport/grpc/dial.go b/transport/grpc/dial.go
index 2d4f90c9c1f..12ebb0a11e7 100644
--- a/transport/grpc/dial.go
+++ b/transport/grpc/dial.go
@@ -231,6 +231,7 @@ func dialPoolNewAuth(ctx context.Context, secure bool, poolSize int, ds *interna
 		GRPCDialOpts:          ds.GRPCDialOpts,
 		PoolSize:              poolSize,
 		Credentials:           creds,
+		APIKey:                ds.APIKey,
 		DetectOpts: &credentials.DetectOptions{
 			Scopes:          ds.Scopes,
 			Audience:        aud,