diff --git a/.travis.yml b/.travis.yml
index e72be6257191..bed171eea70a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,9 +32,9 @@ cache: pip
 stage_generic: &stage_generic
   install:
     # Install step for jobs that require compilation and qa.
-    - pip install -U -r requirements.txt
+    - pip install -U -r requirements.txt -c constraints.txt
     - pip install -U -r requirements-dev.txt coveralls -c constraints.txt
-    - pip install -e .
+    - pip install -c constraints.txt -e .
     - pip install "qiskit-ibmq-provider" -c constraints.txt
   script:
     # Compile the executables and run the tests.
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 41f07fdd9303..5d5452b608a0 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -130,7 +130,7 @@ stages:
             set -e
             python -m pip install --upgrade pip
             pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
-            pip install -e .
+            pip install -c constraints.txt -e .
             pip install "qiskit-ibmq-provider" -c constraints.txt
             python setup.py build_ext --inplace
           displayName: 'Install dependencies'
@@ -180,7 +180,7 @@ stages:
             set -e
             python -m pip install --upgrade pip
             pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
-            pip install -e .
+            pip install -c constraints.txt -e .
             pip install "qiskit-ibmq-provider" -c constraints.txt
             python setup.py build_ext --inplace
           displayName: 'Install dependencies'
@@ -233,7 +233,7 @@ stages:
             set -e
             python -m pip install --upgrade pip
             pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
-            pip install -e .
+            pip install -c constraints.txt -e .
             pip install "qiskit-ibmq-provider" -c constraints.txt
             python setup.py build_ext --inplace
           displayName: 'Install dependencies'
@@ -290,7 +290,7 @@ stages:
             set -e
             python -m pip install --upgrade pip
             pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
-            pip install -e .
+            pip install -c constraints.txt -e .
             pip install "qiskit-ibmq-provider" -c constraints.txt
             python setup.py build_ext --inplace
           displayName: 'Install dependencies'
@@ -342,7 +342,7 @@ stages:
             set -e
             python -m pip install --upgrade pip
             pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
-            pip install -e .
+            pip install -c constraints.txt -e .
             pip install "qiskit-ibmq-provider" -c constraints.txt
             python setup.py build_ext --inplace
           displayName: 'Install dependencies'
@@ -394,7 +394,7 @@ stages:
             set -e
             python -m pip install --upgrade pip
             pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
-            pip install -e .
+            pip install -c constraints.txt -e .
             pip install "qiskit-ibmq-provider" -c constraints.txt
             python setup.py build_ext --inplace
           displayName: 'Install dependencies'
diff --git a/constraints.txt b/constraints.txt
index 465e7987441c..20919eb945ae 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -1,3 +1,4 @@
 astroid==2.2.5
 cryptography==2.5.0
 pylint==2.3.1
+networkx==2.3