diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 93f8a48b..8507ec54 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -7,6 +7,10 @@ Changelog
 
 Contributors: David Huard (:user:`huard`), Trevor James Smith (:user:`Zeitsperre`).
 
+New features
+^^^^^^^^^^^^
+* Updated `raven-hydro` to v0.5.0 (`RavenHydroFramework` v4.1.0). (PR #560)
+
 Fixes
 ^^^^^
 * Fix `Reservoir` command parser failing when optional fields were missing. (PR #544)
diff --git a/environment-dev.yml b/environment-dev.yml
index 650f15e8..ecc18427 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -3,7 +3,7 @@ channels:
   - conda-forge
 dependencies:
   - python >=3.10,<3.14
-  - raven-hydro >=0.4.0,<1.0
+  - raven-hydro >=0.5.0,<1.0
   # - libgcc  # for mixing raven-hydro from PyPI with conda environments
   - affine >=2.4.0
   - cftime >=1.4.1
diff --git a/environment-docs.yml b/environment-docs.yml
index 2b361388..aec1059b 100644
--- a/environment-docs.yml
+++ b/environment-docs.yml
@@ -3,7 +3,7 @@ channels:
   - conda-forge
 dependencies:
   - python >=3.12,<3.13
-  - raven-hydro >=0.4.0,<1.0
+  - raven-hydro >=0.5.0,<1.0
   - autodoc-pydantic >=2.1.0
   - birdy
   - cairosvg >=2.6.0
diff --git a/pyproject.toml b/pyproject.toml
index ff060b36..9268d9bc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -140,7 +140,7 @@ gis = [
   "shapely >=2.0"
 ]
 raven-hydro = [
-  "raven-hydro >=0.4.0,<1.0"
+  "raven-hydro >=0.5.0,<1.0"
 ]
 all = [
   "ravenpy[dev]",
diff --git a/tests/test_emulators.py b/tests/test_emulators.py
index ed8cefca..b2aa7f6a 100644
--- a/tests/test_emulators.py
+++ b/tests/test_emulators.py
@@ -20,7 +20,8 @@
     # "CanadianShield": 0.3968, <- This is the value for CanadianShield with RavenHydroFramework v3.7
     "CanadianShield": 0.4001,  # <- This is the new value for CanadianShield with RavenHydroFramework v3.8 and v3.8.1
     "HYPR": 0.685188,
-    "SACSMA": -0.0382907,
+    # "SACSMA": -0.0383, # <- This is the original value for SACSMA with RavenHydroFramework v3.8.1 and v4.0.0
+    "SACSMA": -0.2666,
     # "Blended": -0.913785, <- This is the original value for Blended with RavenHydroFramework v3.8.1
     "Blended": -1.1507,  # <- This is the new value for Blended with RavenHydroFramework v4.0.1
 }
@@ -42,7 +43,7 @@ def test_run(numeric_config, tmp_path):
     out = e.run()
     d = out.diagnostics
 
-    np.testing.assert_almost_equal(d["DIAG_NASH_SUTCLIFFE"], NSE[name], 4)
+    np.testing.assert_almost_equal(d["DIAG_NASH_SUTCLIFFE"], [NSE[name]], 4)
 
     if name == "CanadianShield":
         pytest.skip("Missing solution due to SuppressOutput.")