diff --git a/core/src/main/java/it/pagopa/selfcare/party/registry_proxy/core/InstitutionServiceImpl.java b/core/src/main/java/it/pagopa/selfcare/party/registry_proxy/core/InstitutionServiceImpl.java
index b7936dbb..1b2fcde0 100644
--- a/core/src/main/java/it/pagopa/selfcare/party/registry_proxy/core/InstitutionServiceImpl.java
+++ b/core/src/main/java/it/pagopa/selfcare/party/registry_proxy/core/InstitutionServiceImpl.java
@@ -1,17 +1,21 @@
 package it.pagopa.selfcare.party.registry_proxy.core;
 
+import com.opencsv.bean.CsvToBean;
+import com.opencsv.bean.CsvToBeanBuilder;
 import it.pagopa.selfcare.party.registry_proxy.connector.api.IndexSearchService;
+import it.pagopa.selfcare.party.registry_proxy.connector.api.IndexWriterService;
 import it.pagopa.selfcare.party.registry_proxy.connector.exception.ResourceNotFoundException;
-import it.pagopa.selfcare.party.registry_proxy.connector.model.Entity;
-import it.pagopa.selfcare.party.registry_proxy.connector.model.Institution;
+import it.pagopa.selfcare.party.registry_proxy.connector.model.*;
 import it.pagopa.selfcare.party.registry_proxy.connector.model.Institution.Field;
-import it.pagopa.selfcare.party.registry_proxy.connector.model.Origin;
-import it.pagopa.selfcare.party.registry_proxy.connector.model.QueryResult;
+import it.pagopa.selfcare.party.registry_proxy.connector.rest.client.OpenDataRestClient;
+import it.pagopa.selfcare.party.registry_proxy.connector.rest.model.IPAOpenDataInstitution;
 import it.pagopa.selfcare.party.registry_proxy.core.exception.TooManyResourceFoundException;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
 
+import java.io.*;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
@@ -23,9 +27,15 @@
 class InstitutionServiceImpl implements InstitutionService {
 
     private final IndexSearchService<Institution> indexSearchService;
+    private final OpenDataRestClient openDataRestClient;
+    private final IndexWriterService<Institution> institutionIndexWriterService;
+
+
 
     @Autowired
-    InstitutionServiceImpl(IndexSearchService<Institution> indexSearchService) {
+    InstitutionServiceImpl(IndexSearchService<Institution> indexSearchService, OpenDataRestClient openDataRestClient, IndexWriterService<Institution> institutionIndexWriterService) {
+        this.openDataRestClient = openDataRestClient;
+        this.institutionIndexWriterService = institutionIndexWriterService;
         log.trace("Initializing {}", InstitutionServiceImpl.class.getSimpleName());
         this.indexSearchService = indexSearchService;
     }
@@ -85,4 +95,36 @@ public Institution findById(String id, Optional<Origin> origin, List<String> cat
             return institution;
         }
     }
+
+    @Scheduled(cron = "0 0 2 * * *")
+    void updateInstitutionsIndex() {
+        log.trace("start update Institutions IPA index");
+        List<Institution> institutions = getInstitutions();
+        if (!institutions.isEmpty()) {
+            institutionIndexWriterService.cleanIndex(Entity.INSTITUTION.toString());
+            institutionIndexWriterService.adds(institutions);
+        }
+        log.trace("updated Institutions IPA index end");
+    }
+
+    private List<Institution> getInstitutions() {
+        log.trace("getInstitutions start");
+        List<Institution> institutions;
+        final String csv = openDataRestClient.retrieveInstitutions();
+
+        try (Reader reader = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(csv.getBytes())))) {
+            CsvToBean<Institution> csvToBean = new CsvToBeanBuilder<Institution>(reader)
+                    .withType(IPAOpenDataInstitution.class)
+                    .withIgnoreLeadingWhiteSpace(true)
+                    .build();
+            institutions = csvToBean.parse();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+
+        log.trace("getInstitutions end");
+        return institutions;
+    }
+
 }
+
diff --git a/core/src/test/java/it/pagopa/selfcare/party/registry_proxy/core/InstitutionServiceImplTest.java b/core/src/test/java/it/pagopa/selfcare/party/registry_proxy/core/InstitutionServiceImplTest.java
index fde3fd15..6809ab26 100644
--- a/core/src/test/java/it/pagopa/selfcare/party/registry_proxy/core/InstitutionServiceImplTest.java
+++ b/core/src/test/java/it/pagopa/selfcare/party/registry_proxy/core/InstitutionServiceImplTest.java
@@ -1,10 +1,13 @@
 package it.pagopa.selfcare.party.registry_proxy.core;
 
 import it.pagopa.selfcare.party.registry_proxy.connector.api.IndexSearchService;
+import it.pagopa.selfcare.party.registry_proxy.connector.api.IndexWriterService;
 import it.pagopa.selfcare.party.registry_proxy.connector.model.*;
 import it.pagopa.selfcare.party.registry_proxy.connector.model.Institution.Field;
 import it.pagopa.selfcare.party.registry_proxy.connector.exception.ResourceNotFoundException;
+import it.pagopa.selfcare.party.registry_proxy.connector.rest.client.OpenDataRestClient;
 import it.pagopa.selfcare.party.registry_proxy.core.exception.TooManyResourceFoundException;
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.junit.jupiter.api.function.Executable;
@@ -31,6 +34,12 @@ class InstitutionServiceImplTest {
     @InjectMocks
     private InstitutionServiceImpl institutionService;
 
+    @Mock
+    private OpenDataRestClient openDataRestClient;
+
+    @Mock
+    private IndexWriterService<Institution> institutionIndexWriterService;
+
 
     @Test
     void search_emptySearchText() {
@@ -300,4 +309,13 @@ void findById_ResourceNotFound5() {
         verifyNoMoreInteractions(indexSearchService);
     }
 
+    @Test
+    void updateInstitutionsIndex() {
+        final String response = "id,Codice_IPA,Denominazione_ente,Codice_fiscale_ente,Mail1,Data_aggiornamento\n" +
+                "id,Codice_IPA,Denominazione_ente,Codice_fiscale_ente,Mail1,2024-01-01";
+        when(openDataRestClient.retrieveInstitutions()).thenReturn(response);
+        Executable executable = () -> institutionService.updateInstitutionsIndex();
+        Assertions.assertDoesNotThrow(executable);
+    }
+
 }
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