diff --git a/README.rst b/README.rst
index b43f7db..b242093 100644
--- a/README.rst
+++ b/README.rst
@@ -19,7 +19,7 @@ Histograms and other aggregators may also be converted into CUDA code for inclus
 PyCUDA is available, they can also be filled from Numpy arrays by JIT-compiling the CUDA code.
 This Python implementation of histogrammar been tested to guarantee compatibility with its Scala implementation.
 
-Latest Python release: v1.0.22 (Mar 2021).
+Latest Python release: v1.0.23 (Mar 2021).
 
 Announcements
 =============
diff --git a/histogrammar/dfinterface/addmethods.py b/histogrammar/dfinterface/addmethods.py
index d6da7ec..aadb636 100644
--- a/histogrammar/dfinterface/addmethods.py
+++ b/histogrammar/dfinterface/addmethods.py
@@ -53,7 +53,7 @@
 
 
 def add_sparksql_methods(cls, prefix=''):
-    add_methods(cls=cls, hg=hg_fill_sparksqlm, prefix=prefix)
+    add_methods(cls=cls, hg=hg_fill_sparksql, prefix=prefix)
 
 
 def add_pandas_methods(cls, prefix=''):
diff --git a/setup.py b/setup.py
index 38aa263..f994a2b 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 MAJOR = 1
 REVISION = 0
-PATCH = 22
+PATCH = 23
 DEV = False
 # NOTE: also update version at: README.rst
 
diff --git a/tests/test_pandas_histogrammar.py b/tests/test_pandas_histogrammar.py
index ae03c41..868fd6e 100644
--- a/tests/test_pandas_histogrammar.py
+++ b/tests/test_pandas_histogrammar.py
@@ -96,7 +96,7 @@ def test_make_histograms_no_time_axis():
     assert time_axis == ""
     assert "date" in hists
     h = hists["date"]
-    assert h.binWidth == 751582381944440.9
+    assert h.binWidth == 751582381944448.0
     for cols in features:
         cols = cols.split(":")
         assert len(cols) == 1
@@ -121,7 +121,7 @@ def test_make_histograms_with_time_axis():
     assert time_axis == "date"
     assert "date:age" in hists
     h = hists["date:age"]
-    assert h.binWidth == 751582381944440.9
+    assert h.binWidth == 751582381944448.0
     for cols in features:
         cols = cols.split(":")
         assert len(cols) == 2 and cols[0] == "date"
@@ -129,7 +129,7 @@ def test_make_histograms_with_time_axis():
         assert len(bs) == 2
     assert "date:age" in bin_specs
     dateage = bin_specs["date:age"]
-    assert dateage[0]["binWidth"] == 751582381944440.9
+    assert dateage[0]["binWidth"] == 751582381944448.0
     assert dateage[1]["binWidth"] == 2.0
     assert dateage[1]["origin"] == 9.5
 
@@ -137,7 +137,7 @@ def test_make_histograms_with_time_axis():
     bin_specs = get_bin_specs(hists)
     assert "date:age" in bin_specs
     dateage = bin_specs["date:age"]
-    assert dateage[0]["binWidth"] == 751582381944440.9
+    assert dateage[0]["binWidth"] == 751582381944448.0
     assert dateage[1]["binWidth"] == 2.0
     assert dateage[1]["origin"] == 9.5
 
@@ -150,7 +150,7 @@ def test_make_histograms_with_time_axis():
 
     # test get_bin_specs 3
     bin_specs = get_bin_specs(hists["date:age"])
-    assert bin_specs[0]["binWidth"] == 751582381944440.9
+    assert bin_specs[0]["binWidth"] == 751582381944448.0
     assert bin_specs[1]["binWidth"] == 2.0
     assert bin_specs[1]["origin"] == 9.5