diff --git a/var/spack/repos/builtin/packages/py-your/package.py b/var/spack/repos/builtin/packages/py-your/package.py
index a0e90fc7bde..f226bff0b31 100644
--- a/var/spack/repos/builtin/packages/py-your/package.py
+++ b/var/spack/repos/builtin/packages/py-your/package.py
@@ -10,14 +10,14 @@ class PyYour(PythonPackage):
     """Python library to read and process pulsar data in several different formats"""
 
     homepage = "https://github.com/thepetabyteproject/your"
-
-    # pypi tarball has requirements.txt missing
     url = "https://github.com/thepetabyteproject/your/archive/refs/tags/0.6.7.tar.gz"
+    git = "https://github.com/thepetabyteproject/your.git"
 
     maintainers("aweaver1fandm")
 
     license("GPL-3.0")
 
+    version("main", branch="main", preferred=True)
     version("0.6.7", sha256="f2124a630d413621cce067805feb6b9c21c5c8938f41188bd89684968478d814")
 
     depends_on("python@3.8:", type=("build", "run"))
@@ -25,7 +25,9 @@ class PyYour(PythonPackage):
 
     depends_on("py-astropy@6.1.0:", type=("build", "run"))
     depends_on("py-matplotlib@3.2.1:", type=("build", "run"))
-    depends_on("py-numpy@1.18.4:", type=("build", "run"))
+
+    depends_on("py-numpy@1.18.4:1.23.5", when="@0.6.7", type=("build", "run"))
+    depends_on("py-numpy@1.18.4:", when="@main", type=("build", "run"))
     depends_on("py-h5py@2.10:", type=("build", "run"))
     depends_on("py-scikit-image@0.14.2:", type=("build", "run"))
     depends_on("py-scipy@1.3:", type=("build", "run"))