diff --git a/pytorch_lightning/metrics/functional/explained_variance.py b/pytorch_lightning/metrics/functional/explained_variance.py
index 534032024d5c0..bcfe698bf4c5e 100644
--- a/pytorch_lightning/metrics/functional/explained_variance.py
+++ b/pytorch_lightning/metrics/functional/explained_variance.py
@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from typing import Sequence, Tuple, Union
+from typing import Sequence, Union
 
 import torch
 from torchmetrics.functional import explained_variance as _explained_variance
diff --git a/pytorch_lightning/metrics/functional/mean_relative_error.py b/pytorch_lightning/metrics/functional/mean_relative_error.py
index 8c6e10a17320b..be21371bdc91a 100644
--- a/pytorch_lightning/metrics/functional/mean_relative_error.py
+++ b/pytorch_lightning/metrics/functional/mean_relative_error.py
@@ -11,7 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from typing import Tuple
 
 import torch
 from torchmetrics.functional.regression.mean_relative_error import mean_relative_error as _mean_relative_error
diff --git a/pytorch_lightning/metrics/functional/mean_squared_error.py b/pytorch_lightning/metrics/functional/mean_squared_error.py
index 6801a0aa6e9e8..9d1850dcd8689 100644
--- a/pytorch_lightning/metrics/functional/mean_squared_error.py
+++ b/pytorch_lightning/metrics/functional/mean_squared_error.py
@@ -11,7 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from typing import Tuple
 
 import torch
 from torchmetrics.functional import mean_squared_error as _mean_squared_error
diff --git a/pytorch_lightning/metrics/functional/mean_squared_log_error.py b/pytorch_lightning/metrics/functional/mean_squared_log_error.py
index ac8154918f22f..56654ea47daf2 100644
--- a/pytorch_lightning/metrics/functional/mean_squared_log_error.py
+++ b/pytorch_lightning/metrics/functional/mean_squared_log_error.py
@@ -11,7 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from typing import Tuple
 
 import torch
 from torchmetrics.functional import mean_squared_log_error as _mean_squared_log_error