diff --git a/requirements.txt b/requirements.txt
index 65a6693..eeeeef2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,11 +3,11 @@ Flask~=1.1.1
 Flask-Limiter~=1.0.1
 Flask-Script~=2.0.6
 Flask-SQLAlchemy~=2.4
-Flask-Migrate~=2.5
-Flask-Login~=0.4
-Flask-Scrypt~=0.1.3
+Flask-Migrate==2.5.2
+Flask-Login==0.4.1
+Flask-Scrypt==0.1.3.6
 flask-jwt-extended~=3.23.0
-flask-celeryext~=0.3
+flask-celeryext==0.3.2
 omise~=0.8.1
 requests-oauthlib~=1.2
 icalendar~=4.0.3
@@ -17,48 +17,48 @@ SQLAlchemy-Utils~=0.34.2
 itsdangerous~=1.1
 humanize~=0.5.1
 celery~=4.3
-redis~=3.3
+redis==3.3.8
 apscheduler~=3.6.1
 pillow~=6.1.0
-amqp~=2.5
+amqp==2.5.1
 gunicorn~=19.9
 boto~=2.49
 geoip2~=2.9.0
 SQLAlchemy-Continuum~=1.3.9
-arrow~=0.15.1
-unicode-slugify~=0.1
+arrow==0.15.2
+unicode-slugify==0.1.3
 bleach~=3.1
-stripe~=2.36.1
-xhtml2pdf~=0.2
-flask-caching~=1.4
+stripe==2.36.2
+xhtml2pdf==0.2.3
+flask-caching==1.7.2
 forex-python~=1.5
 pycryptodome~=3.9.0
-oauth2~=1.9
+oauth2==1.9.0.post1
 qrcode~=6.1
-python-magic~=0.4
+python-magic==0.4.15
 python-dotenv~=0.10.3
 python-geoip~=1.2
-marrow.mailer~=4.0
+marrow.mailer==4.0.2
 flask-cors~=3.0.8
 python-pentabarf-xml==0.19  # leave versions untouched.
-python-geoip-geolite2
-pycountry
-pytz
-diff-match-patch
+python-geoip-geolite2==2015.0303
+pycountry==19.8.18
+pytz==2019.2
+diff-match-patch==20121119
 blinker~=1.4
 envparse~=0.2
 -e git+https://github.com/fossasia/flask-rest-jsonapi.git@shubhamp-master#egg=flask-rest-jsonapi
-wtforms~=2.2
-flask-admin~=1.5
-google-compute-engine~=2.8
+wtforms==2.2.1
+flask-admin==1.5.3
+google-compute-engine==2.8.13
 factory_boy~=2.12
-sentry-sdk[flask]~=0.11
-healthcheck~=1.3
+sentry-sdk[flask]==0.11.2
+healthcheck==1.3.3
 elasticsearch-dsl~=7.0
 flask-redis~=0.4
 SQLAlchemy~=1.3.8
-Flask-Elasticsearch~=0.2
-paypalrestsdk~=1.13
-eventlet~=0.25
-pyyaml~=5.1
-sendgrid~=6.0
\ No newline at end of file
+Flask-Elasticsearch==0.2.5
+paypalrestsdk==1.13.1
+eventlet==0.25.1
+pyyaml==5.1.2
+sendgrid==6.1.0
\ No newline at end of file
diff --git a/requirements/common.txt b/requirements/common.txt
index 65a6693..eeeeef2 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -3,11 +3,11 @@ Flask~=1.1.1
 Flask-Limiter~=1.0.1
 Flask-Script~=2.0.6
 Flask-SQLAlchemy~=2.4
-Flask-Migrate~=2.5
-Flask-Login~=0.4
-Flask-Scrypt~=0.1.3
+Flask-Migrate==2.5.2
+Flask-Login==0.4.1
+Flask-Scrypt==0.1.3.6
 flask-jwt-extended~=3.23.0
-flask-celeryext~=0.3
+flask-celeryext==0.3.2
 omise~=0.8.1
 requests-oauthlib~=1.2
 icalendar~=4.0.3
@@ -17,48 +17,48 @@ SQLAlchemy-Utils~=0.34.2
 itsdangerous~=1.1
 humanize~=0.5.1
 celery~=4.3
-redis~=3.3
+redis==3.3.8
 apscheduler~=3.6.1
 pillow~=6.1.0
-amqp~=2.5
+amqp==2.5.1
 gunicorn~=19.9
 boto~=2.49
 geoip2~=2.9.0
 SQLAlchemy-Continuum~=1.3.9
-arrow~=0.15.1
-unicode-slugify~=0.1
+arrow==0.15.2
+unicode-slugify==0.1.3
 bleach~=3.1
-stripe~=2.36.1
-xhtml2pdf~=0.2
-flask-caching~=1.4
+stripe==2.36.2
+xhtml2pdf==0.2.3
+flask-caching==1.7.2
 forex-python~=1.5
 pycryptodome~=3.9.0
-oauth2~=1.9
+oauth2==1.9.0.post1
 qrcode~=6.1
-python-magic~=0.4
+python-magic==0.4.15
 python-dotenv~=0.10.3
 python-geoip~=1.2
-marrow.mailer~=4.0
+marrow.mailer==4.0.2
 flask-cors~=3.0.8
 python-pentabarf-xml==0.19  # leave versions untouched.
-python-geoip-geolite2
-pycountry
-pytz
-diff-match-patch
+python-geoip-geolite2==2015.0303
+pycountry==19.8.18
+pytz==2019.2
+diff-match-patch==20121119
 blinker~=1.4
 envparse~=0.2
 -e git+https://github.com/fossasia/flask-rest-jsonapi.git@shubhamp-master#egg=flask-rest-jsonapi
-wtforms~=2.2
-flask-admin~=1.5
-google-compute-engine~=2.8
+wtforms==2.2.1
+flask-admin==1.5.3
+google-compute-engine==2.8.13
 factory_boy~=2.12
-sentry-sdk[flask]~=0.11
-healthcheck~=1.3
+sentry-sdk[flask]==0.11.2
+healthcheck==1.3.3
 elasticsearch-dsl~=7.0
 flask-redis~=0.4
 SQLAlchemy~=1.3.8
-Flask-Elasticsearch~=0.2
-paypalrestsdk~=1.13
-eventlet~=0.25
-pyyaml~=5.1
-sendgrid~=6.0
\ No newline at end of file
+Flask-Elasticsearch==0.2.5
+paypalrestsdk==1.13.1
+eventlet==0.25.1
+pyyaml==5.1.2
+sendgrid==6.1.0
\ No newline at end of file
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 8c55c54..fa15b3e 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -1,5 +1,5 @@
 -r common.txt
 
-nose~=1.3
-pylint~=2.3
-pep8~=1.7
\ No newline at end of file
+nose==1.3.7
+pylint==2.3.1
+pep8==1.7.1
\ No newline at end of file
diff --git a/requirements/tests.txt b/requirements/tests.txt
index 9f47bf7..0bddf74 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -1,4 +1,4 @@
 -r dev.txt
 
-coverage~=4.5
+coverage==4.5.4
 dredd_hooks~=0.2
\ No newline at end of file