diff --git a/test/conftest.py b/test/conftest.py
index 1154cc80c..3bd2e8c07 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -17,6 +17,7 @@
 PROJ_GTE_91 = PROJ_LOOSE_VERSION >= version.parse("9.1")
 PROJ_GTE_911 = PROJ_LOOSE_VERSION >= version.parse("9.1.1")
 PROJ_GTE_92 = PROJ_LOOSE_VERSION >= version.parse("9.2.0")
+PROJ_GTE_921 = PROJ_LOOSE_VERSION >= version.parse("9.2.1")
 
 
 def unset_data_dir():
diff --git a/test/crs/test_crs.py b/test/crs/test_crs.py
index 19ca060b7..db2aec08c 100644
--- a/test/crs/test_crs.py
+++ b/test/crs/test_crs.py
@@ -24,6 +24,7 @@
     PROJ_GTE_91,
     PROJ_GTE_901,
     PROJ_GTE_911,
+    PROJ_GTE_921,
     assert_can_pickle,
     grids_available,
 )
@@ -407,6 +408,8 @@ def test_datum_unknown():
         "+towgs84=0,0,0,0,0,0,0 +units=m +no_defs"
     )
     datum_name = "Unknown based on WGS84 ellipsoid"
+    if PROJ_GTE_921:
+        datum_name = "Unknown based on WGS 84 ellipsoid"
     if PROJ_GTE_901:
         datum_name = f"{datum_name} using towgs84=0,0,0,0,0,0,0"
     assert crs.datum.name == datum_name