diff --git a/var/spack/repos/builtin/packages/py-comm/package.py b/var/spack/repos/builtin/packages/py-comm/package.py
index fd195b1f4f..5e82ade2c0 100644
--- a/var/spack/repos/builtin/packages/py-comm/package.py
+++ b/var/spack/repos/builtin/packages/py-comm/package.py
@@ -12,7 +12,10 @@ class PyComm(PythonPackage):
     homepage = "https://github.com/ipython/comm"
     pypi = "comm/comm-0.1.3.tar.gz"
 
+    version("0.1.4", sha256="354e40a59c9dd6db50c5cc6b4acc887d82e9603787f83b68c01a80a923984d15")
     version("0.1.3", sha256="a61efa9daffcfbe66fd643ba966f846a624e4e6d6767eda9cf6e993aadaab93e")
 
     depends_on("py-hatchling@1.10:", type="build")
-    depends_on("py-traitlets@5.3:", type=("build", "run"))
+
+    depends_on("py-traitlets@4:", when="@0.1.4:", type=("build", "run"))
+    depends_on("py-traitlets@5.3:", when="@0.1.3", type=("build", "run"))