diff --git a/src/rmqrcode/format/data_capacities.py b/src/rmqrcode/format/data_capacities.py
index 7cb8541..58b3739 100644
--- a/src/rmqrcode/format/data_capacities.py
+++ b/src/rmqrcode/format/data_capacities.py
@@ -2,7 +2,7 @@
 
 
 # ISO/IEC 23941:2022 Table 6
-data_capacities = {
+DataCapacities = {
     'R7x43': {
         'height': 7,
         'width': 43,
diff --git a/src/rmqrcode/format/qr_versions.py b/src/rmqrcode/format/rmqr_versions.py
similarity index 99%
rename from src/rmqrcode/format/qr_versions.py
rename to src/rmqrcode/format/rmqr_versions.py
index 1c29e8a..2bc9232 100644
--- a/src/rmqrcode/format/qr_versions.py
+++ b/src/rmqrcode/format/rmqr_versions.py
@@ -1,7 +1,7 @@
 from .error_correction_level import ErrorCorrectionLevel
 
 
-qr_versions = {
+rMQRVersions = {
     'R7x43': {
         'version_indicator': 0b00000,
         'height': 7,
diff --git a/src/rmqrcode/rmqrcode.py b/src/rmqrcode/rmqrcode.py
index aadb4cd..c8a2cad 100644
--- a/src/rmqrcode/rmqrcode.py
+++ b/src/rmqrcode/rmqrcode.py
@@ -1,6 +1,6 @@
 from .format.error_correction_level import ErrorCorrectionLevel
-from .format.qr_versions import qr_versions
-from .format.data_capacities import data_capacities
+from .format.rmqr_versions import rMQRVersions
+from .format.data_capacities import DataCapacities
 from .format.alignment_pattern_coordinates import AlignmentPatternCoordinates
 from .format.generator_polynomials import GeneratorPolynomials
 from .format.mask import mask
@@ -33,7 +33,7 @@ def fit(data,ecc=ErrorCorrectionLevel.M, fit_strategy=FitStrategy.BALANCED):
         determined_height = set()
 
         logger.debug("Select rMQR Code version")
-        for version_name, qr_version in data_capacities.items():
+        for version_name, qr_version in DataCapacities.items():
             if data_length <= qr_version['capacity']['Byte'][ecc]:
                 width, height = qr_version['width'], qr_version['height']
                 if not width in determined_width and not height in determined_height:
@@ -69,7 +69,7 @@ def __init__(self, version, ecc, logger=None):
         if not rMQR.validate_version(version):
             raise IllegalVersionError("The rMQR version is illegal.")
 
-        qr_version = qr_versions[version]
+        qr_version = rMQRVersions[version]
         self._version = version
         self._height = qr_version['height']
         self._width = qr_version['width']
@@ -248,7 +248,7 @@ def _put_version_information_finder_sub_pattern_side(self, version_information):
 
 
     def _compute_version_info(self):
-        qr_version = qr_versions[self.version_name()]
+        qr_version = rMQRVersions[self.version_name()]
         version_information_data = qr_version['version_indicator']
         if self._error_correction_level == ErrorCorrectionLevel.H:
             version_information_data |= 1<<6
@@ -258,7 +258,7 @@ def _compute_version_info(self):
 
 
     def _put_data(self, data):
-        qr_version = qr_versions[self.version_name()]
+        qr_version = rMQRVersions[self.version_name()]
 
         character_count_length = qr_version['character_count_length']
         codewords_total = qr_version['codewords_total']
@@ -393,7 +393,7 @@ def _apply_mask(self, mask_area):
 
     @staticmethod
     def validate_version(version_name):
-        return version_name in qr_versions
+        return version_name in rMQRVersions
 
 
 class DataTooLongError(ValueError):