diff --git a/data/sql/grid_alternatives.sql b/data/sql/grid_alternatives.sql
index 7e839675d7..cf2fd2ac51 100644
--- a/data/sql/grid_alternatives.sql
+++ b/data/sql/grid_alternatives.sql
@@ -248,6 +248,7 @@ VALUES
 ('href2008a.bin','no_kv_href2008a.tif',NULL,'GTiff','geoid_like',0,NULL,'https://cdn.proj.org/no_kv_href2008a.tif',1,1,NULL),
 ('no_kv_NKGETRF14_EPSG7922_2000.tif','no_kv_NKGETRF14_EPSG7922_2000.tif',NULL,'GTiff','geocentricoffset',0,NULL,'https://cdn.proj.org/no_kv_NKGETRF14_EPSG7922_2000.tif',1,1,NULL),
 ('ChartDatum_above_Ellipsoid_EUREF89_v2021a.bin','no_kv_CD_above_Ell_ETRS89_v2021a.tif',NULL,'GTiff','vgridshift',0,NULL,'https://cdn.proj.org/no_kv_CD_above_Ell_ETRS89_v2021a.tif',1,1,NULL),
+('ChartDatum_above_Ellipsoid_EUREF89_v2023b.bin','no_kv_CD_above_Ell_ETRS89_v2023b.tif',NULL,'GTiff','vgridshift',0,NULL,'https://cdn.proj.org/no_kv_CD_above_Ell_ETRS89_v2023b.tif',1,1,NULL),
 ('no_kv_ETRS89NO_NGO48_TIN.json','no_kv_ETRS89NO_NGO48_TIN.json',NULL,'JSON','tinshift',0,NULL,'https://cdn.proj.org/no_kv_ETRS89NO_NGO48_TIN.json',1,1,NULL),
 ('arcgp-2006-sk.bin','no_kv_arcgp-2006-sk.tif',NULL,'GTiff','geoid_like',0,NULL,'https://cdn.proj.org/no_kv_arcgp-2006-sk.tif',1,1,NULL),
 
diff --git a/test/unit/test_operationfactory.cpp b/test/unit/test_operationfactory.cpp
index a7dcba966a..299fefb20c 100644
--- a/test/unit/test_operationfactory.cpp
+++ b/test/unit/test_operationfactory.cpp
@@ -883,7 +883,7 @@ TEST(operation, geog3DCRS_to_vertCRS_depth_context) {
                   "+step +proj=axisswap +order=2,1 "
                   "+step +proj=unitconvert +xy_in=deg +xy_out=rad "
                   "+step +inv +proj=vgridshift "
-                  "+grids=no_kv_CD_above_Ell_ETRS89_v2021a.tif +multiplier=1 "
+                  "+grids=no_kv_CD_above_Ell_ETRS89_v2023b.tif +multiplier=1 "
                   "+step +proj=axisswap +order=1,2,-3 "
                   "+step +proj=unitconvert +xy_in=rad +xy_out=deg "
                   "+step +proj=axisswap +order=2,1");
@@ -909,7 +909,7 @@ TEST(operation, geog3DCRS_to_vertCRS_depth_context) {
                   "+step +proj=unitconvert +xy_in=deg +xy_out=rad "
                   "+step +proj=axisswap +order=1,2,-3 "
                   "+step +proj=vgridshift "
-                  "+grids=no_kv_CD_above_Ell_ETRS89_v2021a.tif +multiplier=1 "
+                  "+grids=no_kv_CD_above_Ell_ETRS89_v2023b.tif +multiplier=1 "
                   "+step +proj=unitconvert +xy_in=rad +xy_out=deg "
                   "+step +proj=axisswap +order=2,1");
     }
@@ -940,7 +940,7 @@ TEST(operation, geog3DCRS_to_geog2DCRS_plus_vertCRS_depth_context) {
                   "+step +proj=axisswap +order=2,1 "
                   "+step +proj=unitconvert +xy_in=deg +xy_out=rad "
                   "+step +inv +proj=vgridshift "
-                  "+grids=no_kv_CD_above_Ell_ETRS89_v2021a.tif +multiplier=1 "
+                  "+grids=no_kv_CD_above_Ell_ETRS89_v2023b.tif +multiplier=1 "
                   "+step +proj=axisswap +order=1,2,-3 "
                   "+step +proj=unitconvert +xy_in=rad +xy_out=deg "
                   "+step +proj=axisswap +order=2,1");
@@ -966,7 +966,7 @@ TEST(operation, geog3DCRS_to_geog2DCRS_plus_vertCRS_depth_context) {
                   "+step +proj=unitconvert +xy_in=deg +xy_out=rad "
                   "+step +proj=axisswap +order=1,2,-3 "
                   "+step +proj=vgridshift "
-                  "+grids=no_kv_CD_above_Ell_ETRS89_v2021a.tif +multiplier=1 "
+                  "+grids=no_kv_CD_above_Ell_ETRS89_v2023b.tif +multiplier=1 "
                   "+step +proj=unitconvert +xy_in=rad +xy_out=deg "
                   "+step +proj=axisswap +order=2,1");
     }