diff --git a/CHANGELOG.md b/CHANGELOG.md
index 83ac54ffa..b8a9aa145 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## v1.75.0 (2024-03-28)
+
+### Features
+
+ * upgrade to pydantic 2.x
+
+### Bug Fixes and Other Changes
+
+ * change schemas constraint
+
+## v1.74.1 (2024-03-27)
+
+### Bug Fixes and Other Changes
+
+ * temporarily pin the schemas version
+
 ## v1.74.0 (2024-03-21)
 
 ### Features
diff --git a/model.tar.gz b/model.tar.gz
new file mode 100644
index 000000000..93bf6a4a0
Binary files /dev/null and b/model.tar.gz differ
diff --git a/setup.py b/setup.py
index 16f96bd31..6c0a9e984 100644
--- a/setup.py
+++ b/setup.py
@@ -27,8 +27,8 @@
     packages=find_namespace_packages(where="src", exclude=("test",)),
     package_dir={"": "src"},
     install_requires=[
-        "amazon-braket-schemas>=1.20.2",
-        "amazon-braket-default-simulator>=1.19.1",
+        "amazon-braket-schemas>=1.21.0",
+        "amazon-braket-default-simulator>=1.21.2",
         "oqpy~=0.3.5",
         "setuptools",
         "backoff",
diff --git a/src/braket/_sdk/_version.py b/src/braket/_sdk/_version.py
index 9c443c490..9c4e62904 100644
--- a/src/braket/_sdk/_version.py
+++ b/src/braket/_sdk/_version.py
@@ -15,4 +15,4 @@
 Version number (major.minor.patch[-label])
 """
 
-__version__ = "1.74.1.dev0"
+__version__ = "1.75.1.dev0"
diff --git a/test/unit_tests/braket/circuits/test_angled_gate.py b/test/unit_tests/braket/circuits/test_angled_gate.py
index 4e093e5b4..ae33d4029 100644
--- a/test/unit_tests/braket/circuits/test_angled_gate.py
+++ b/test/unit_tests/braket/circuits/test_angled_gate.py
@@ -15,7 +15,7 @@
 
 import numpy as np
 import pytest
-from pydantic import BaseModel
+from pydantic.v1 import BaseModel
 
 from braket.circuits import AngledGate, FreeParameter, FreeParameterExpression, Gate
 from braket.circuits.angled_gate import DoubleAngledGate, TripleAngledGate
diff --git a/test/unit_tests/braket/devices/test_local_simulator.py b/test/unit_tests/braket/devices/test_local_simulator.py
index 4877a0b8f..f284b5a6f 100644
--- a/test/unit_tests/braket/devices/test_local_simulator.py
+++ b/test/unit_tests/braket/devices/test_local_simulator.py
@@ -18,7 +18,7 @@
 from unittest.mock import Mock, patch
 
 import pytest
-from pydantic import create_model  # This is temporary for defining properties below
+from pydantic.v1 import create_model  # This is temporary for defining properties below
 
 import braket.ir as ir
 from braket.ahs.analog_hamiltonian_simulation import AnalogHamiltonianSimulation