diff --git a/meson.build b/meson.build
index 37fc0cf..5355cde 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('xleaf', 'c',
-  version : '1.2.1',
+  version : '1.2.2',
   meson_version : '>=1.1.0',
   default_options : ['warning_level=2'],
 )
diff --git a/pyproject.toml b/pyproject.toml
index 9313632..18fa30e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "mesonpy"
 
 [project]
 name = "xleaf"
-version = "1.2.1"
+version = "1.2.2"
 description = "Leaf and canopy radiative transfer modeling tools built on PROSPECT-D and SAIL"
 readme = "README.md"
 license = "MIT"
diff --git a/xleaf/samplers.py b/xleaf/samplers.py
index 25939f2..05b4f1c 100644
--- a/xleaf/samplers.py
+++ b/xleaf/samplers.py
@@ -6,6 +6,9 @@
 
 import numpy as np
 
+# default random seed, shared across samplers for reproducible draws
+SEED = 2017
+
 
 class BaseSampler(abc.ABC):
     """Base class for creating random samples of leaf/canopy parameters."""
@@ -34,7 +37,7 @@ def sample(self) -> float:
 class UniformSampler(BaseSampler):
     """Uniform random sample generator."""
 
-    def __init__(self, min: float, max: float, seed: int | None = 2017):
+    def __init__(self, min: float, max: float, seed: int | None = SEED):
         """Generate a uniform random sampler from a range of values.
 
         Args:
@@ -65,7 +68,7 @@ def __init__(
         stdv: float,
         min: float | None = None,
         max: float | None = None,
-        seed: int | None = 2017,
+        seed: int | None = SEED,
     ):
         """Generate a normal random sampler from a parameterized distribution.