diff --git a/.github/workflows/test_development_versions.yml b/.github/workflows/test_development_versions.yml
index 24a51290e..95aa7543e 100644
--- a/.github/workflows/test_development_versions.yml
+++ b/.github/workflows/test_development_versions.yml
@@ -31,7 +31,11 @@ jobs:
         run: |
           python -m pip install --upgrade pip tox
           python -m pip install toml typer
+          python tools/extremal-python-dependencies.py add-dependency \
+              "qiskit-terra @ git+https://github.com/Qiskit/qiskit.git@stable/0.46" \
+              --inplace
           python tools/extremal-python-dependencies.py pin-dependencies \
+              "qiskit @ git+https://github.com/Qiskit/qiskit.git@stable/0.46#subdirectory=qiskit_pkg" \
               "qiskit-ibm-runtime @ git+https://github.com/Qiskit/qiskit-ibm-runtime.git" \
               "qiskit-algorithms @ git+https://github.com/qiskit-community/qiskit-algorithms.git" \
               --inplace
diff --git a/README.md b/README.md
index ac71047d6..844638929 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,8 @@
   [![Release](https://img.shields.io/pypi/v/circuit-knitting-toolbox.svg?label=Release)](https://github.com/Qiskit-Extensions/circuit-knitting-toolbox/releases)
   ![Platform](https://img.shields.io/badge/%F0%9F%92%BB%20Platform-Linux%20%7C%20macOS%20%7C%20Windows-informational)
   [![Python](https://img.shields.io/pypi/pyversions/circuit-knitting-toolbox?label=Python&logo=python)](https://www.python.org/)
-  [![Qiskit](https://img.shields.io/badge/Qiskit-%E2%89%A5%200.44.1-6133BD?logo=qiskit)](https://github.com/Qiskit/qiskit)
-  [![Qiskit Nature](https://img.shields.io/badge/Qiskit%20Nature-%E2%89%A5%200.6.0-6133BD?logo=qiskit)](https://github.com/Qiskit/qiskit-nature)
+  [![Qiskit](https://img.shields.io/badge/Qiskit-%E2%89%A5%200.44.1%2C%20%3C1.0-6133BD?logo=qiskit)](https://github.com/Qiskit/qiskit)
+  [![Qiskit Nature](https://img.shields.io/badge/Qiskit%20Nature-%E2%89%A5%200.6.0%2C%20%3C0.7-6133BD?logo=qiskit)](https://github.com/Qiskit/qiskit-nature)
 <br />
   [![Docs (stable)](https://img.shields.io/badge/%F0%9F%93%84%20Docs-stable-blue.svg)](https://qiskit-extensions.github.io/circuit-knitting-toolbox/)
   [![DOI](https://zenodo.org/badge/543181258.svg)](https://zenodo.org/badge/latestdoi/543181258)
diff --git a/pyproject.toml b/pyproject.toml
index c2e244f58..e0ebc3552 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ dependencies = [
     "scipy>=1.5.2",
     "rustworkx>=0.13.0",
     "qiskit-aer>=0.12.0",
-    "qiskit>=0.44.1",
+    "qiskit>=0.44.1, <1.0",
     "qiskit-algorithms>=0.2.1",
     "qiskit-nature>=0.6.0, <0.7",
     "qiskit-ibm-runtime>=0.12.2",
diff --git a/releasenotes/notes/qiskit-0.44-required-5eec7abe45b88ecc.yaml b/releasenotes/notes/qiskit-0.44-required-5eec7abe45b88ecc.yaml
index a5d0bb132..3bb94dad8 100644
--- a/releasenotes/notes/qiskit-0.44-required-5eec7abe45b88ecc.yaml
+++ b/releasenotes/notes/qiskit-0.44-required-5eec7abe45b88ecc.yaml
@@ -3,3 +3,6 @@ upgrade:
   - |
     The minimum supported version of ``qiskit`` is now 0.44.1, and the
     minimum supported version of ``qiskit-ibm-runtime`` is now 0.12.2.
+    CKT also now explicitly requires a version of ``qiskit`` less than
+    1.0, as there is no guarantee that the current version of CKT will
+    work with Qiskit 1.0.