diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6dd0a1f4c0..9b6d9db5d1 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9]
         os: ["ubuntu-latest", "macOS-latest", "windows-latest"]
     steps:
       - uses: actions/checkout@v2
diff --git a/requirements.txt b/requirements.txt
index 9fa126e95f..4e9bd895db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 numpy>=1.17
 scipy>=1.4
-qiskit-terra>=0.16.0
+qiskit-terra>=0.18.0
diff --git a/setup.py b/setup.py
index 3b173d8b45..46f7639f3b 100755
--- a/setup.py
+++ b/setup.py
@@ -52,7 +52,6 @@
         "Operating System :: MacOS",
         "Operating System :: POSIX :: Linux",
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
@@ -62,7 +61,7 @@
     packages=find_packages(exclude=['test*']),
     install_requires=REQUIREMENTS,
     include_package_data=True,
-    python_requires=">=3.6",
+    python_requires=">=3.7",
     project_urls={
         "Bug Tracker": "https://github.com/Qiskit/qiskit-experiments/issues",
         "Documentation": "https://qiskit.org/documentation/",
diff --git a/tox.ini b/tox.ini
index aa69e4a514..4253440351 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,7 +11,6 @@ setenv =
   QISKIT_SUPPRESS_PACKAGING_WARNINGS=Y
 deps =
   -r{toxinidir}/requirements-dev.txt
-  git+https://github.com/Qiskit/qiskit-terra
 commands = stestr run {posargs}
 
 [testenv:lint]