diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c88ef64..681af78e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,10 @@
 # Changelog
+
+### 3.3.2 [#319](https://github.com/openfisca/openfisca-survey-manager/pull/315)
+
+* Technical changes
+  - Transform input arrays of Enums variables in EnumArray type to improve computation speed due to changes in Openfisca-core 42
+
 ### 2.3.1 [#300](https://github.com/openfisca/openfisca-survey-manager/pull/300)
 
 * New features
diff --git a/openfisca_survey_manager/simulations.py b/openfisca_survey_manager/simulations.py
index b42f5b95..e700a39b 100644
--- a/openfisca_survey_manager/simulations.py
+++ b/openfisca_survey_manager/simulations.py
@@ -14,7 +14,7 @@
 
 from openfisca_core import periods
 from openfisca_core.memory_config import MemoryConfig
-from openfisca_core.indexed_enums import Enum
+from openfisca_core.indexed_enums import (Enum, EnumArray)
 from openfisca_core.periods import ETERNITY, MONTH, YEAR
 from openfisca_core.types import Array, CoreEntity as Entity, Period, TaxBenefitSystem
 from openfisca_core.simulations import Simulation
@@ -1094,6 +1094,10 @@ def init_variable_in_entity(simulation: Simulation, entity, variable_name, serie
 
     array = series.values.astype(variable.dtype)
     np_array = np.array(array, dtype = variable.dtype)
+
+    if (variable.value_type == Enum) and (np.issubdtype(series.values.dtype, np.integer) or np.issubdtype(series.values.dtype, float)):
+        np_array = EnumArray(np_array, variable.possible_values)
+
     if variable.definition_period == YEAR and period.unit == MONTH:
         # Some variables defined for a year are present in month/quarter dataframes
         # Cleaning the dataframe would probably be better in the long run
diff --git a/setup.py b/setup.py
index 89d0c42f..57a99426 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
 
 setup(
     name = 'OpenFisca-Survey-Manager',
-    version = '2.3.1',
+    version = '2.3.2',
     author = 'OpenFisca Team',
     author_email = 'contact@openfisca.fr',
     classifiers = [classifier for classifier in classifiers.split('\n') if classifier],