diff --git a/CHANGES.rst b/CHANGES.rst
index ce227a9d..fef5c8da 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -17,6 +17,8 @@ Bug Fixes
 
 - Fix propagating some previously swallowed exceptions. [#614]
 
+- Fix string literal generation for SQL query when using numpy >=2.0. [#624]
+
 
 1.6 (2024-11-01)
 ================
diff --git a/conftest.py b/conftest.py
index b81c77d8..2c83886e 100644
--- a/conftest.py
+++ b/conftest.py
@@ -40,11 +40,6 @@
 iers_conf.auto_download = False
 
 
-# Keep this until we require numpy to be >=2.0
-if minversion(np, "2.0.0.dev0+git20230726"):
-    np.set_printoptions(legacy="1.25")
-
-
 def pytest_configure(config):
     """Configure Pytest with Astropy.
 
diff --git a/pyvo/dal/query.py b/pyvo/dal/query.py
index beedd97f..2bb187ad 100644
--- a/pyvo/dal/query.py
+++ b/pyvo/dal/query.py
@@ -695,7 +695,7 @@ def __len__(self):
         return len(self._mapping)
 
     def __repr__(self):
-        return repr(tuple(self.values()))
+        return repr(tuple(f'{val}' for val in self.values()))
 
     def get(self, key, default=None, decode=False):
         """
diff --git a/pyvo/dal/tests/test_query.py b/pyvo/dal/tests/test_query.py
index 177d4d53..bed62bf5 100644
--- a/pyvo/dal/tests/test_query.py
+++ b/pyvo/dal/tests/test_query.py
@@ -461,7 +461,7 @@ def test_repr(self):
         record = DALResults.from_result_url(
             'http://example.com/query/basic')[0]
         truth = 'Illuminatus'
-        assert repr(record) == repr((23, truth))
+        assert repr(record) == repr(('23', truth))
 
     def test_get(self):
         record = DALResults.from_result_url(
diff --git a/pyvo/registry/rtcons.py b/pyvo/registry/rtcons.py
index 262e94d6..0f37db65 100644
--- a/pyvo/registry/rtcons.py
+++ b/pyvo/registry/rtcons.py
@@ -102,11 +102,8 @@ def make_sql_literal(value):
     elif isinstance(value, bytes):
         return "'{}'".format(value.decode("ascii").replace("'", "''"))
 
-    elif isinstance(value, (int, numpy.integer)):
-        return "{:d}".format(value)
-
-    elif isinstance(value, (float, numpy.floating)):
-        return repr(value)
+    elif isinstance(value, (int, numpy.integer, float, numpy.floating)):
+        return f'{value}'
 
     elif isinstance(value, datetime.datetime):
         return "'{}'".format(value.isoformat())
diff --git a/pyvo/registry/tests/test_rtcons.py b/pyvo/registry/tests/test_rtcons.py
index 86467d05..79e78a21 100644
--- a/pyvo/registry/tests/test_rtcons.py
+++ b/pyvo/registry/tests/test_rtcons.py
@@ -11,7 +11,7 @@
 from astropy.coordinates import SkyCoord
 from astropy.utils.exceptions import AstropyDeprecationWarning
 
-import numpy
+import numpy as np
 import pytest
 
 from pyvo import registry
@@ -21,6 +21,10 @@
 from .commonfixtures import messenger_vocabulary, FAKE_GAVO, FAKE_PLAIN  # noqa: F401
 
 
+# We should make sure non-legacy numpy works as expected for string literal generation
+np.set_printoptions(legacy=False)
+
+
 def _build_regtap_query_with_fake(
         *args,
         service=FAKE_GAVO,
@@ -52,7 +56,7 @@ class _WithFillers(rtcons.Constraint):
                 "bytes": b"keep this ascii for now",
                 "anInt": 210,
                 "aFloat": 5e7,
-                "numpyStuff": numpy.float64(23.7),
+                "numpyStuff": np.float64(23.7),
                 "timestamp": datetime.datetime(2021, 6, 30, 9, 1), }
 
         return _WithFillers()._get_sql_literals()