diff --git a/pkgs/development/python-modules/hyperpyyaml/default.nix b/pkgs/development/python-modules/hyperpyyaml/default.nix
index 0c9ebca661662..2ce4cae573d1f 100644
--- a/pkgs/development/python-modules/hyperpyyaml/default.nix
+++ b/pkgs/development/python-modules/hyperpyyaml/default.nix
@@ -30,18 +30,22 @@ buildPythonPackage rec {
     setuptools
   ];
 
+  patches = [ ./unpin-ruamel-yaml.patch ];
+
   dependencies = [
     pyyaml
     ruamel-yaml
   ];
 
+  pythonRelaxDeps = [
+    "ruamel-yaml"
+  ];
+
   nativeCheckInputs = [ pytestCheckHook ];
 
   pythonImportsCheck = [ "hyperpyyaml" ];
 
   meta = {
-    # https://github.com/speechbrain/HyperPyYAML/pull/32
-    broken = lib.versionAtLeast ruamel-yaml.version "0.19";
     description = "Extensions to YAML syntax for better python interaction";
     homepage = "https://github.com/speechbrain/HyperPyYAML";
     changelog = "https://github.com/speechbrain/HyperPyYAML/releases/tag/${src.tag}";
diff --git a/pkgs/development/python-modules/hyperpyyaml/unpin-ruamel-yaml.patch b/pkgs/development/python-modules/hyperpyyaml/unpin-ruamel-yaml.patch
new file mode 100644
index 0000000000000..8e33adc54aab7
--- /dev/null
+++ b/pkgs/development/python-modules/hyperpyyaml/unpin-ruamel-yaml.patch
@@ -0,0 +1,9 @@
+diff --git a/setup.py b/setup.py
+--- a/setup.py
++++ b/setup.py
+@@ -18,5 +18,5 @@ setuptools.setup(
+     ],
+     packages=["hyperpyyaml"],
+-    install_requires=["pyyaml>=5.1", "ruamel.yaml>=0.17.28,<0.19.0"],
++    install_requires=["pyyaml>=5.1", "ruamel.yaml>=0.17.28"],
+ )
diff --git a/pkgs/development/python-modules/ruamel-yaml/default.nix b/pkgs/development/python-modules/ruamel-yaml/default.nix
index 3d811e098d7be..12115a1e145a5 100644
--- a/pkgs/development/python-modules/ruamel-yaml/default.nix
+++ b/pkgs/development/python-modules/ruamel-yaml/default.nix
@@ -19,6 +19,8 @@ buildPythonPackage rec {
     hash = "sha256-U+tmzSeEnv+Wjr+PC/YfRs2sLaHR81dt1MzumyXDGZM=";
   };
 
+  patches = [ ./loader-max-depth.patch ];
+
   nativeBuildInputs = [ setuptools ];
 
   # Tests use relative paths
diff --git a/pkgs/development/python-modules/ruamel-yaml/loader-max-depth.patch b/pkgs/development/python-modules/ruamel-yaml/loader-max-depth.patch
new file mode 100644
index 0000000000000..0019320fab5f0
--- /dev/null
+++ b/pkgs/development/python-modules/ruamel-yaml/loader-max-depth.patch
@@ -0,0 +1,35 @@
+diff --git a/loader.py b/loader.py
+--- a/loader.py
++++ b/loader.py
+@@ -28,6 +28,7 @@ class BaseLoader(Reader, Scanner, Parser, Composer, BaseConstructor, VersionedRe
+         preserve_quotes: Optional[bool] = None,
+     ) -> None:
+         self.comment_handling = None
++        self.max_depth = 0
+         Reader.__init__(self, stream, loader=self)
+         Scanner.__init__(self, loader=self)
+         Parser.__init__(self, loader=self)
+@@ -43,6 +44,7 @@ class SafeLoader(Reader, Scanner, Parser, Composer, SafeConstructor, VersionedRe
+         preserve_quotes: Optional[bool] = None,
+     ) -> None:
+         self.comment_handling = None
++        self.max_depth = 0
+         Reader.__init__(self, stream, loader=self)
+         Scanner.__init__(self, loader=self)
+         Parser.__init__(self, loader=self)
+@@ -59,6 +61,7 @@ class Loader(Reader, Scanner, Parser, Composer, Constructor, VersionedResolver):
+         preserve_quotes: Optional[bool] = None,
+     ) -> None:
+         self.comment_handling = None
++        self.max_depth = 0
+         Reader.__init__(self, stream, loader=self)
+         Scanner.__init__(self, loader=self)
+         Parser.__init__(self, loader=self)
+@@ -82,6 +85,7 @@ class RoundTripLoader(
+     ) -> None:
+         # self.reader = Reader.__init__(self, stream)
+         self.comment_handling = None  # issue 385
++        self.max_depth = 0
+         Reader.__init__(self, stream, loader=self)
+         RoundTripScanner.__init__(self, loader=self)
+         RoundTripParser.__init__(self, loader=self)