diff --git a/etc/requirements.txt b/etc/requirements.txt
index 60efb73742dfd6331752b1157a52c32f17ad4b10..62a5a2311def2451865def2ecdacebf8c295451d 100644
--- a/etc/requirements.txt
+++ b/etc/requirements.txt
@@ -1,16 +1,16 @@
 alabaster==0.7.12
-alembic==1.6.2
+alembic==1.5.5
 amqp==5.0.5
 appdirs==1.4.4
-attrs==21.2.0
+attrs==20.3.0
 Babel==2.9.0
 billiard==3.6.3.0
 build==0.3.1.post1
 celery==5.0.5
 certifi==2020.12.5
 cffi==1.14.5
-cfgv==3.3.0
-chardet==4.0.0
+cfgv==3.2.0
+chardet==3.0.4
 click==7.1.2
 click-didyoumean==0.0.3
 click-plugins==1.1.1
@@ -19,12 +19,12 @@ cryptography==3.4.7
 cycler==0.10.0
 distlib==0.3.1
 dnspython==2.1.0
-docutils==0.17.1
+docutils==0.17
 dominate==2.6.0
 email-validator==1.1.2
 filelock==3.0.12
 Flask==1.1.4
-Flask-Admin==1.5.8
+Flask-Admin==1.5.7
 Flask-BS4==4.5.3.0
 Flask-Caching==1.10.1
 Flask-Cors==3.0.10
@@ -34,9 +34,9 @@ Flask-Login==0.5.0
 Flask-SQLAlchemy==2.5.1
 Flask-WTF==0.14.3
 github3.py==2.0.0
-greenlet==1.1.0
+greenlet==1.0.0
 httplib2==0.19.0
-identify==2.2.4
+identify==2.2.2
 idna==2.10
 imagesize==1.2.0
 iniconfig==1.1.1
@@ -57,16 +57,16 @@ MarkupSafe==1.1.1
 matplotlib==3.3.4
 mirakuru==2.3.0
 more-itertools==8.0.2
-nodeenv==1.6.0
+nodeenv==1.5.0
 numba==0.52.0
 numpy==1.20.3
 packaging==20.9
-pandas==1.2.4
-pbr==5.6.0
+pandas==1.2.3
+pbr==3.1.1
 pep517==0.10.0
 Pillow==8.2.0
-pip-licenses==3.3.1
-pip-tools==6.1.0
+pip-licenses==3.3.0
+pip-tools==5.5.0
 pipenv==2020.11.15
 pkg-resources==0.0.0
 plantuml==0.3.0
@@ -75,7 +75,7 @@ plantuml-markdown==3.4.2
 plantuml-wrapper==0.1.0
 pluggy==0.13.1
 port-for==0.4
-pre-commit==2.12.1
+pre-commit==2.10.1
 prettytable==2.0.0
 prompt-toolkit==3.0.16
 psutil==5.8.0
@@ -87,7 +87,7 @@ pyaml==20.4.0
 pycparser==2.20
 pyecharts==1.9.0
 pyecharts-extras==0.0.5
-Pygments==2.9.0
+Pygments==2.8.1
 PyMySQL==1.0.2
 pynndescent==0.5.2
 pyparsing==2.4.7
@@ -100,11 +100,11 @@ pytest-postgresql==3.0.0
 pytest-runner==5.3.0
 pytest-venv==0.2.1
 python-dateutil==2.8.1
-python-dotenv==0.17.1
+python-dotenv==0.15.0
 python-editor==1.0.4
 python-magic==0.4.22
 pytoolbox==14.0.0
-pytz==2021.1
+pytz==2020.5
 PyYAML==5.4.1
 pyzmq==22.0.3
 redis==3.5.3
@@ -112,10 +112,10 @@ requests==2.25.1
 scikit-learn==0.24.1
 scipy==1.6.3
 simplejson==3.17.2
-six==1.16.0
+six==1.15.0
 snowballstemmer==2.1.0
 speaklater==1.3
-Sphinx==4.0.1
+Sphinx==3.4.3
 sphinxcontrib-applehelp==1.0.2
 sphinxcontrib-devhelp==1.0.2
 sphinxcontrib-github==0.1.3
@@ -123,11 +123,11 @@ sphinxcontrib-gravizo==0.0.4
 sphinxcontrib-htmlhelp==1.0.3
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-log-cabinet==1.0.1
-sphinxcontrib-plantuml==0.21
+sphinxcontrib-plantuml==0.20.1
 sphinxcontrib-qthelp==1.0.3
 sphinxcontrib-serializinghtml==1.1.4
 SQLAlchemy==1.4.15
-SQLAlchemy-Utils==0.37.3
+SQLAlchemy-Utils==0.36.8
 StatisticalDiagrams==20.5
 threadpoolctl==2.1.0
 tokenize-rt==4.1.0
@@ -141,7 +141,7 @@ uritemplate==3.0.1
 urllib3==1.26.4
 venv-run==0.1.0
 vine==5.0.0
-virtualenv==20.4.6
+virtualenv==20.4.3
 virtualenv-clone==0.5.4
 visdom==0.1.8.9
 visitor==0.1.3