diff --git a/.github/workflows/ci_test-base.yml b/.github/workflows/ci_test-base.yml
index 1c4a8d826f..b718596044 100644
--- a/.github/workflows/ci_test-base.yml
+++ b/.github/workflows/ci_test-base.yml
@@ -44,9 +44,9 @@ jobs:
       uses: actions/cache@v2
       with:
         path: ${{ steps.pip-cache.outputs.dir }}
-        key: ${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.requires }}-pip-${{ hashFiles('requirements/base.txt') }}
+        key: ${{ runner.os }}-pip-py${{ matrix.python-version }}-${{ matrix.requires }}-${{ hashFiles('requirements/base.txt') }}
         restore-keys: |
-          ${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.requires }}-pip-
+          ${{ runner.os }}-pip-py${{ matrix.python-version }}-${{ matrix.requires }}-
 
     - name: Install dependencies
       run: |
diff --git a/.github/workflows/ci_test-full.yml b/.github/workflows/ci_test-full.yml
index 493587b04b..196869611c 100644
--- a/.github/workflows/ci_test-full.yml
+++ b/.github/workflows/ci_test-full.yml
@@ -75,9 +75,9 @@ jobs:
       uses: actions/cache@v2
       with:
         path: ${{ steps.pip-cache.outputs.dir }}
-        key: ${{ runner.os }}-pip-py${{ matrix.python-version }}-${{ matrix.requires }}-pip-${{ hashFiles('requirements/base.txt') }}-${{ hashFiles('requirements/extra.txt') }}
+        key: ${{ runner.os }}-pip-py${{ matrix.python-version }}-${{ matrix.requires }}-${{ hashFiles('requirements/base.txt') }}-${{ hashFiles('requirements/extra.txt') }}
         restore-keys: |
-          ${{ runner.os }}-pip-py${{ matrix.python-version }}-${{ matrix.requires }}-pip-
+          ${{ runner.os }}-pip-py${{ matrix.python-version }}-${{ matrix.requires }}-
 
     - name: Install dependencies
       run: |
diff --git a/environment.yml b/environment.yml
index 85a639cd33..c9856baab7 100644
--- a/environment.yml
+++ b/environment.yml
@@ -27,14 +27,14 @@ dependencies:
     - pip>=20.0.2
     - numpy>=1.16.4
     - pytorch>=1.3
-    - tensorboard==2.2.1
     - future>=0.17.1
     - PyYAML>=5.1
     - tqdm>=4.41.0
     - fsspec>=0.8.0
-    - nvidia-apex
+    #- tensorboard>=2.2.0
 
     # Optional
+    - nvidia-apex
     - scikit-learn>=0.20.0
     - matplotlib>=3.1.1
     - omegaconf>=2.0.0
diff --git a/requirements/base.txt b/requirements/base.txt
index 3e30d2b93d..0f8423e086 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -2,9 +2,9 @@
 
 numpy>=1.16.4
 torch>=1.3
-tensorboard==2.2.0
 future>=0.17.1  # required for builtins in setup.py
 # pyyaml>=3.13
 PyYAML>=5.1  # OmegaConf requirement >=5.1
 tqdm>=4.41.0
 fsspec>=0.8.0
+tensorboard>=2.2.0
diff --git a/requirements/test.txt b/requirements/test.txt
index 312f100c60..d98048568f 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -8,7 +8,7 @@ flake8-black
 check-manifest
 twine==1.13.0
 scikit-image
-black==19.10b0
+black>=20.8b1
 pre-commit>=1.0
 
 cloudpickle>=1.2
diff --git a/tests/collect_env_details.py b/tests/collect_env_details.py
index 30b6ebc9f3..1d443795d2 100644
--- a/tests/collect_env_details.py
+++ b/tests/collect_env_details.py
@@ -10,7 +10,6 @@ import re
 import sys
 
 import numpy
-import tensorboard
 import torch
 import tqdm
 
@@ -61,7 +60,6 @@ def info_packages():
         "pyTorch_version": torch.__version__,
         'pyTorch_debug': torch.version.debug,
         'pytorch-lightning': pytorch_lightning.__version__,
-        'tensorboard': tensorboard.__version__,
         'tqdm': tqdm.__version__,
     }
 
diff --git a/tests/loggers/test_tensorboard.py b/tests/loggers/test_tensorboard.py
index 0c28829013..dc9ff6dc0f 100644
--- a/tests/loggers/test_tensorboard.py
+++ b/tests/loggers/test_tensorboard.py
@@ -6,6 +6,7 @@ import pytest
 import torch
 import yaml
 from omegaconf import OmegaConf
+from tensorboard.backend.event_processing.event_accumulator import EventAccumulator
 
 from pytorch_lightning import Trainer
 from pytorch_lightning.loggers import TensorBoardLogger
@@ -34,17 +35,23 @@ def test_tensorboard_hparams_reload(tmpdir):
 
     # verify artifacts
     assert len(os.listdir(os.path.join(folder_path, "checkpoints"))) == 1
-    #
-    # # verify tb logs
-    # event_acc = EventAccumulator(folder_path)
-    # event_acc.Reload()
-    #
-    # hparams_data = b'\x12\x84\x01"\x0b\n\tdrop_prob"\x0c\n\nbatch_size"\r\n\x0bin_features"' \
-    #                b'\x0f\n\rlearning_rate"\x10\n\x0eoptimizer_name"\x0b\n\tdata_root"\x0e\n' \
-    #                b'\x0cout_features"\x0c\n\nhidden_dim"\x04\n\x02b1"\x04\n\x02b2'
-    #
-    # assert event_acc.summary_metadata['_hparams_/experiment'].plugin_data.plugin_name == 'hparams'
-    # assert event_acc.summary_metadata['_hparams_/experiment'].plugin_data.content == hparams_data
+    
+    # verify tb logs
+    event_acc = EventAccumulator(folder_path)
+    event_acc.Reload()
+
+    data_pt_1_5 = b'\x12\x93\x01"\x0b\n\tdrop_prob"\x0c\n\nbatch_size"\r\n\x0bin_features"\x0f\n\rlearning_rate"' \
+                  b'\x10\n\x0eoptimizer_name"\x0b\n\tdata_root"\x0e\n\x0cout_features"\x0c\n\nhidden_dim"' \
+                  b'\x04\n\x02b1"\x04\n\x02b2*\r\n\x0b\x12\thp_metric'
+    data_pt_1_6 = b'\x12\xa7\x01"\r\n\tdrop_prob \x03"\x0e\n\nbatch_size \x03"\x0f\n\x0bin_features \x03"' \
+                  b'\x11\n\rlearning_rate \x03"\x12\n\x0eoptimizer_name \x01"\r\n\tdata_root \x01"' \
+                  b'\x10\n\x0cout_features \x03"\x0e\n\nhidden_dim \x03"\x06\n\x02b1 \x03"' \
+                  b'\x06\n\x02b2 \x03*\r\n\x0b\x12\thp_metric'
+
+    hparams_data = data_pt_1_6 if LooseVersion(torch.__version__) >= LooseVersion("1.6.0") else data_pt_1_5
+    
+    assert event_acc.summary_metadata['_hparams_/experiment'].plugin_data.plugin_name == 'hparams'
+    assert event_acc.summary_metadata['_hparams_/experiment'].plugin_data.content == hparams_data
 
 
 def test_tensorboard_automatic_versioning(tmpdir):