diff --git a/.travis.yml b/.travis.yml
index 1ad5c4e9b..4c4bc0ef7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -40,6 +40,8 @@ matrix:
     - env: TOXENV=asyncio
       python: 3.8
       dist: bionic
+before_install:
+  - pip install -U pip
 install:
   - |
       if [[ ! -z "$PYPY_VERSION" ]]; then
@@ -49,7 +51,6 @@ install:
         virtualenv --python="$PYPY_VERSION/bin/pypy3" "$HOME/virtualenvs/$PYPY_VERSION"
         source "$HOME/virtualenvs/$PYPY_VERSION/bin/activate"
       fi
-  - pip install --upgrade pip
   - pip install -U tox twine wheel codecov
 
 script: tox
diff --git a/tox.ini b/tox.ini
index e923aeb85..e1e46921e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -64,8 +64,8 @@ commands =
 [pinned]
 deps =
     -ctests/constraints.txt
-    #using cryptography-3.1 to solve dependencies conflict on pip20.2>=
-    cryptography==3.1
+    #using cryptography-2.3.1 to solve dependencies conflict on pip20.2>=
+    cryptography==2.3.1
     cssselect==0.9.1
     itemadapter==0.1.0
     parsel==1.5.0