diff --git a/requirements.txt b/requirements.txt
index 6e6e2019d5b..5050f2ab30c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 boto3==1.9.246
 botocore==1.12.246
 coloredlogs==14.0
-docutils==0.15
+docutils<0.16,>=0.14
 emoji==0.5.4
 docformatter==1.3.0
 flake8-bugbear==19.8.0
@@ -9,19 +9,19 @@ flake8==3.7.8
 fvcore==0.1.1.post20200716
 gitdb2==2.0.5
 GitPython==3.0.3
-hydra-core==1.0.3
+hydra-core~=1.0.6
 ipython==7.19.0
 torch>=1.4.0
 joblib==0.14.1
 nltk==3.4.5
 numpy==1.17.5
-omegaconf==2.0.2
+omegaconf<2.1.0
 pandas==1.1.1
 pytest_regressions==2.1.1
 pytest==5.3.2
 pexpect==4.7.0
 Pillow==8.1.1
-py-gfm==0.1.4
+py-gfm==1.0.2
 py-rouge==1.1
 pyyaml==5.4
 pyzmq==18.1.0
@@ -34,8 +34,8 @@ scikit-learn==0.23.1
 scipy==1.4.1
 sh==1.12.14
 sphinx_rtd_theme==0.4.3
-sphinx-autodoc-typehints==1.10.3
-Sphinx==2.2.0
+sphinx-autodoc-typehints~=1.10.3
+Sphinx~=2.2.0
 subword-nmt==0.3.7
 tensorboard==2.3.0
 tensorboardX==2.1