diff --git a/pyproject.toml b/pyproject.toml
index d14fe6d1..26b88cc6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ keywords = [
 ]
 requires-python = ">=3.7"
 dependencies = [
-    "boost-histogram~=1.3.1",
+    "boost-histogram>=1.3.1,<1.5",
     "histoprint>=2.2.0",
     "numpy>=1.14.5",
     'typing-extensions>=4;python_version<"3.11"',
diff --git a/tests/test_stacks.py b/tests/test_stacks.py
index e3ed7be7..e8a09ed9 100644
--- a/tests/test_stacks.py
+++ b/tests/test_stacks.py
@@ -21,7 +21,7 @@
 reg_hist = Hist(reg_ax).fill(np.random.randn(10))
 boo_hist = Hist(boo_ax).fill([True, False, True])
 var_hist = Hist(var_ax).fill(np.random.randn(10))
-int_hist = Hist(int_ax).fill(np.random.randn(10))
+int_hist = Hist(int_ax).fill(np.random.randint(-3, 3, size=10))
 int_cat_hist = Hist(int_cat_ax).fill(np.random.randn(10))
 str_cat_hist = Hist(str_cat_ax).fill(["T", "F", "T"])