diff --git a/docs/source/whatsnew.rst b/docs/source/whatsnew.rst
index cb0a959..16ce46c 100644
--- a/docs/source/whatsnew.rst
+++ b/docs/source/whatsnew.rst
@@ -19,6 +19,10 @@ Added
 ^^^^^
 * Add testing for Python 3.14. (:pull:`144`)
 
+Testing
+^^^^^^^
+* The test values for the skyfield solar position function were updated to
+  match skyfield version 1.54. (:issue:`148`, :pull:`150`)
 
 1.0.1 - 2025-11-09
 -------------------
diff --git a/pyproject.toml b/pyproject.toml
index 8f76d00..c8c7d6b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,8 +47,8 @@ dependencies = [
 dynamic = ["version"]
 
 [project.optional-dependencies]
-optional = ["skyfield>=1.51", "sg2"]
-test = ["pytest>=7", "pytest-cov", "packaging"]
+optional = ["skyfield", "sg2"]
+test = ["pytest>=7", "pytest-cov", "packaging","skyfield>=1.54"]
 doc = [
     "solposx[optional]",
     "sphinx==8.2.3",
diff --git a/tests/test_solarposition.py b/tests/test_solarposition.py
index 016a643..2690721 100644
--- a/tests/test_solarposition.py
+++ b/tests/test_solarposition.py
@@ -252,16 +252,16 @@ def expected_skyfield():
         [32.20484556, 57.79515444, 204.96423388],
         [34.92239511, 55.07760489, 169.37578931],
         [18.63535617, 71.36464383, 234.18984836],
-        [35.75683037, 54.24316963, 197.66893877],
-        [-9.5305175, 99.5305175, 201.18798691],
+        [35.75683042, 54.24316958, 197.66893874],
+        [-9.53051750, 99.53051750, 201.18798691],
         [66.85755467, 23.14244533, 245.08983994],
         [9.52569869, 80.47430131, 338.81201317],
         [50.10684928, 39.89315072, 326.23556156],
         [35.36142589, 54.63857411, 175.38836795],
         [-53.24128453, 143.24128453, 18.64711844],
         [-53.24128453, 143.24128453, 18.64711844],
-        [32.43211642, 57.56788358, 205.06175657],
-        [32.62788726, 57.36871411, 204.26008339],
+        [32.43211646, 57.56788354, 205.06175654],
+        [32.63002970, 57.36997030, 204.25182407],
         [-23.40856284, 113.40856284, 79.54814898],
         [1.10723972, 88.89276028, 104.53937506],
         [32.21731177, 57.78268823, 204.91794786],