diff --git a/Cargo.lock b/Cargo.lock
index 0a86b482100c..812de0ccaae1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -393,7 +393,7 @@ dependencies = [
 
 [[package]]
 name = "qiskit-qasm2"
-version = "0.45.2"
+version = "0.45.3"
 dependencies = [
  "hashbrown 0.14.0",
  "pyo3",
@@ -401,7 +401,7 @@ dependencies = [
 
 [[package]]
 name = "qiskit_accelerate"
-version = "0.45.2"
+version = "0.45.3"
 dependencies = [
  "ahash",
  "hashbrown 0.14.0",
diff --git a/Cargo.toml b/Cargo.toml
index 57c3985a7707..e7011b63e1d1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 members = ["crates/*"]
 
 [workspace.package]
-version = "0.45.2"
+version = "0.45.3"
 edition = "2021"
 rust-version = "1.64"  # Keep in sync with README.md and rust-toolchain.toml.
 license = "Apache-2.0"
diff --git a/docs/conf.py b/docs/conf.py
index c12097599d82..806649362d49 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -26,7 +26,7 @@
 # The short X.Y version
 version = "0.45"
 # The full version, including alpha/beta/rc tags
-release = "0.45.2"
+release = "0.45.3"
 
 language = "en"
 
diff --git a/qiskit/VERSION.txt b/qiskit/VERSION.txt
index 9f3a7d7492f7..460e2afaa26a 100644
--- a/qiskit/VERSION.txt
+++ b/qiskit/VERSION.txt
@@ -1 +1 @@
-0.45.2
+0.45.3
diff --git a/qiskit_pkg/setup.py b/qiskit_pkg/setup.py
index 1c47a0b04d08..67cb15f4852e 100644
--- a/qiskit_pkg/setup.py
+++ b/qiskit_pkg/setup.py
@@ -26,11 +26,11 @@
 with open(README_PATH) as readme_file:
     README = readme_file.read()
 
-requirements = ["qiskit-terra==0.45.2"]
+requirements = ["qiskit-terra==0.45.3"]
 
 setup(
     name="qiskit",
-    version="0.45.2",
+    version="0.45.3",
     description="Software for developing quantum computing programs",
     long_description=README,
     long_description_content_type="text/markdown",
diff --git a/releasenotes/notes/qiskit-1.0-incompatibility-9ad22472837837d8.yaml b/releasenotes/notes/qiskit-1.0-incompatibility-9ad22472837837d8.yaml
index 0cc999bf1888..d8e1bcec2628 100644
--- a/releasenotes/notes/qiskit-1.0-incompatibility-9ad22472837837d8.yaml
+++ b/releasenotes/notes/qiskit-1.0-incompatibility-9ad22472837837d8.yaml
@@ -1,11 +1,17 @@
 ---
 prelude: |
     Qiskit 0.45.3 is a point release with no code changes other than to raise an :exc:`ImportError`
-    if it detects it has been installed in an invalid environment with Qiskit 1.0+.
+    if it detects it has been installed in an invalid environment with Qiskit >=1.0.
 
     Please read `our migration guide about the new packaging <https://qisk.it/1-0-packaging-migration>`__
     for help on errors, preparing for Qiskit 1.0, and more detailed background information.
 
+    .. note::
+
+      Qiskit 1.0 is due to release approximately two weeks after Qiskit 0.45.3,
+      on the 15th of February 2024, and might not yet be available when you
+      read this message.  This change is being made proactively.
+
     The packaging structure of Qiskit is changing in Qiskit 1.0, and unfortunately the changed
     requirements cannot be fully communicated to ``pip``, especially if ``pip install --upgrade``
     commands are run after the environment has been initially configured.  All versions of Qiskit
@@ -13,7 +19,7 @@ prelude: |
     will not resolve.
 
     If ``import qiskit`` raises an :exc:`ImportError` for you, your environment is in an invalid
-    state, and versions of Qiskit 0.45/0.46 and 1.0 are both reachable, which will result in subtley
+    state, and versions of Qiskit 0.45/0.46 and 1.0 are both reachable, which will result in subtly
     broken code.  You will need to create a new virtual environment, and ensure that *only* one of
     the two versions are installed.  In particular, if you are intending to install Qiskit 1.0,
     you must have no packages that depend on ``qiskit-terra`` installed; these packages are
diff --git a/setup.py b/setup.py
index f0918c44f7e4..70e8e50d9cd1 100644
--- a/setup.py
+++ b/setup.py
@@ -57,7 +57,7 @@
 
 setup(
     name="qiskit-terra",
-    version="0.45.2",
+    version="0.45.3",
     description="Software for developing quantum computing programs",
     long_description=README,
     long_description_content_type="text/markdown",