diff --git a/large_image/tilesource/base.py b/large_image/tilesource/base.py
index 6717234d6..81ae459f1 100644
--- a/large_image/tilesource/base.py
+++ b/large_image/tilesource/base.py
@@ -2771,7 +2771,7 @@ def getPixel(self, includeTileRecord=False, **kwargs):
                     pixel.update(dict(zip(img.mode.lower(), img.load()[0, 0])))
                 else:
                     pixel.update(dict(zip([img.mode.lower()], [img.load()[0, 0]])))
-        return pixel
+        return JSONDict(pixel)
 
     @property
     def frames(self):
diff --git a/sources/gdal/large_image_source_gdal/__init__.py b/sources/gdal/large_image_source_gdal/__init__.py
index 5730990b8..93fff4be1 100644
--- a/sources/gdal/large_image_source_gdal/__init__.py
+++ b/sources/gdal/large_image_source_gdal/__init__.py
@@ -513,7 +513,7 @@ def getBandInformation(self, statistics=True, dataset=None, **kwargs):
                 cache = not dataset
                 if not dataset:
                     dataset = self.dataset
-                infoSet = {}
+                infoSet = JSONDict({})
                 for i in range(dataset.RasterCount):
                     band = dataset.GetRasterBand(i + 1)
                     info = {}
@@ -609,7 +609,7 @@ def getInternalMetadata(self, **kwargs):
 
         :returns: a dictionary of data or None.
         """
-        result = {}
+        result = JSONDict({})
         with self._getDatasetLock:
             result['driverShortName'] = self.dataset.GetDriver().ShortName
             result['driverLongName'] = self.dataset.GetDriver().LongName
diff --git a/sources/rasterio/large_image_source_rasterio/__init__.py b/sources/rasterio/large_image_source_rasterio/__init__.py
index f04812635..236a46e44 100644
--- a/sources/rasterio/large_image_source_rasterio/__init__.py
+++ b/sources/rasterio/large_image_source_rasterio/__init__.py
@@ -41,6 +41,7 @@
 from large_image.tilesource.geo import (GDALBaseFileTileSource,
                                         ProjUnitsAcrossLevel0,
                                         ProjUnitsAcrossLevel0_MaxSize)
+from large_image.tilesource.utilities import JSONDict
 
 try:
     from importlib.metadata import PackageNotFoundError
@@ -448,7 +449,7 @@ def getBandInformation(self, statistics=True, dataset=None, **kwargs):
             dataset = dataset or self.dataset
 
             # loop in the bands to get the indicidative stats (bands are 1 indexed)
-            infoSet = {}
+            infoSet = JSONDict({})
             for i in dataset.indexes:  # 1 indexed
 
                 # get the stats
@@ -490,7 +491,7 @@ def getMetadata(self):
             has_gcps = len(self.dataset.gcps[0]) != 0 and self.dataset.gcps[1]
             has_affine = self.dataset.transform
 
-            metadata = {
+            metadata = JSONDict({
                 'geospatial': bool(has_projection or has_gcps or has_affine),
                 'levels': self.levels,
                 'sizeX': self.sizeX,
@@ -503,7 +504,7 @@ def getMetadata(self):
                 'bounds': self.getBounds(self.projection),
                 'sourceBounds': self.getBounds(),
                 'bands': self.getBandInformation(),
-            }
+            })
 
         # magnification is computed elswhere
         metadata.update(self.getNativeMagnification())
@@ -518,7 +519,7 @@ def getInternalMetadata(self, **kwargs):
 
         :returns: a dictionary of data or None.
         """
-        result = {}
+        result = JSONDict({})
         with self._getDatasetLock:
             result['driverShortName'] = self.dataset.driver
             result['driverLongName'] = self.dataset.driver
diff --git a/test/source_geo_base.py b/test/source_geo_base.py
index f2f33485b..17fc49a1c 100644
--- a/test/source_geo_base.py
+++ b/test/source_geo_base.py
@@ -218,6 +218,9 @@ def testPixel(self):
         assert pixel == {
             'r': 94, 'g': 98, 'b': 99, 'a': 255, 'bands': {1: 77.0, 2: 82.0, 3: 84.0}}
 
+        # Make sure pixel return value is JSON serializable
+        assert json.dumps(pixel)
+
     def testSourceErrors(self):
         testDir = os.path.dirname(os.path.realpath(__file__))
         imagePath = os.path.join(testDir, 'test_files', 'rgb_geotiff.tiff')