diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1dd24d2..a1be90d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,9 @@
 * Remove support for Python 3.9.
   [(#78)](https://github.com/PennyLaneAI/pennylane-qulacs/pull/78)
 
+* Upgrade minimum supported version of PennyLane to 0.38.0.
+  [(#)]()
+
 ### Contributors ✍️
 
 This release contains contributions from (in alphabetical order):
diff --git a/pennylane_qulacs/qulacs_device.py b/pennylane_qulacs/qulacs_device.py
index 75c9772..da15d57 100644
--- a/pennylane_qulacs/qulacs_device.py
+++ b/pennylane_qulacs/qulacs_device.py
@@ -81,7 +81,7 @@ class QulacsDevice(QubitDevice):
 
     name = "Qulacs device"
     short_name = "qulacs.simulator"
-    pennylane_requires = ">=0.11.0"
+    pennylane_requires = ">=0.38.0"
     version = __version__
     author = "Steven Oud and Xanadu"
     gpu_supported = GPU_SUPPORTED
diff --git a/setup.py b/setup.py
index 2212713..e228bfb 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@
 
 
 requirements = [
-    "pennylane>=0.15",
+    "pennylane>=0.38",
     "numpy",
     "scipy",
 ]