diff --git a/api/src/core/adapters/dbApi/kysely/createPgSoftwareRepository.ts b/api/src/core/adapters/dbApi/kysely/createPgSoftwareRepository.ts
index d0f998ea..34ca16fe 100644
--- a/api/src/core/adapters/dbApi/kysely/createPgSoftwareRepository.ts
+++ b/api/src/core/adapters/dbApi/kysely/createPgSoftwareRepository.ts
@@ -191,7 +191,9 @@ export const createPgSoftwareRepository = (db: Kysely<Database>): SoftwareReposi
                         parentWikidataSoftware: parentExternalData,
                         keywords: software?.keywords ?? softwareExternalData?.keywords ?? [],
                         programmingLanguages: softwareExternalData?.programmingLanguages ?? [],
-                        applicationCategories: softwareExternalData?.applicationCategories ?? []
+                        applicationCategories: software.categories.concat(
+                            softwareExternalData?.applicationCategories ?? []
+                        )
                     });
                 }),
         getById: getBySoftwareId,
@@ -285,7 +287,9 @@ export const createPgSoftwareRepository = (db: Kysely<Database>): SoftwareReposi
                                 software.comptoirDuLibreSoftware?.providers.length ?? 0,
                             testUrl: testUrls[0]?.url,
                             parentWikidataSoftware: parentExternalData ?? undefined,
-                            applicationCategories: softwareExternalData?.applicationCategories ?? [],
+                            applicationCategories: software.categories.concat(
+                                softwareExternalData?.applicationCategories ?? []
+                            ),
                             programmingLanguages: softwareExternalData?.programmingLanguages ?? []
                         });
                     }
@@ -547,6 +551,6 @@ const makeGetSoftwareById =
                     testUrl: testUrls[0]?.url,
                     parentWikidataSoftware: parentExternalData,
                     programmingLanguages: softwareExternalData?.programmingLanguages ?? [],
-                    applicationCategories: softwareExternalData?.applicationCategories ?? []
+                    applicationCategories: software.categories.concat(softwareExternalData?.applicationCategories ?? [])
                 });
             });
diff --git a/web/src/core/adapter/sillApiMock.ts b/web/src/core/adapter/sillApiMock.ts
index 3a4b3455..2f7e437a 100644
--- a/web/src/core/adapter/sillApiMock.ts
+++ b/web/src/core/adapter/sillApiMock.ts
@@ -98,7 +98,7 @@ export const sillApi: SillApi = {
             "testUrl": undefined,
             "addedTime": Date.now(),
             "updateTime": Date.now(),
-            "categories": [],
+            "applicationCategories": [],
             "prerogatives": {
                 "doRespectRgaa": false,
                 "isFromFrenchPublicServices": formData.isFromFrenchPublicService,
@@ -111,8 +111,7 @@ export const sillApi: SillApi = {
             },
             "keywords": [],
             "annuaireCnllServiceProviders": [],
-            "programmingLanguages": ["c++"],
-            "applicationCategories": []
+            "programmingLanguages": ["c++"]
         };
 
         softwares.push(software);
@@ -154,7 +153,7 @@ export const sillApi: SillApi = {
                 "testUrl": undefined,
                 "addedTime": Date.now(),
                 "updateTime": Date.now(),
-                "categories": [],
+                "applicationCategories": [],
                 "prerogatives": {
                     "doRespectRgaa": false,
                     "isFromFrenchPublicServices": formData.isFromFrenchPublicService,
@@ -168,7 +167,6 @@ export const sillApi: SillApi = {
                 },
                 "keywords": [],
                 "annuaireCnllServiceProviders": [],
-                "applicationCategories": [],
                 "programmingLanguages": []
             })
         };
@@ -326,7 +324,7 @@ const softwares = [
         "addedTime": 1670416144,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["messaging"],
+        "applicationCategories": ["messaging"],
         "softwareType": {
             "type": "cloud"
         },
@@ -341,7 +339,6 @@ const softwares = [
             "DINUM": { "referentCount": 2, "userCount": 43 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -387,7 +384,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["traitement de texte"],
+        "applicationCategories": ["traitement de texte"],
         "prerogatives": {
             "doRespectRgaa": true,
             "isFromFrenchPublicServices": true,
@@ -407,7 +404,6 @@ const softwares = [
             "CA du Puy-en-Velay": { "referentCount": 1, "userCount": 0 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -453,7 +449,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud", "software"],
+        "applicationCategories": ["cloud", "software"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -465,7 +461,6 @@ const softwares = [
             "DINUM": { "referentCount": 2, "userCount": 43 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -514,7 +509,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["player"],
+        "applicationCategories": ["player"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -522,7 +517,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -570,7 +564,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -582,7 +576,6 @@ const softwares = [
             "DINUM": { "referentCount": 2, "userCount": 43 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -645,7 +638,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -657,7 +650,6 @@ const softwares = [
             "DINUM": { "referentCount": 2, "userCount": 43 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -702,7 +694,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -713,7 +705,6 @@ const softwares = [
             "DINUM": { "referentCount": 2, "userCount": 43 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -763,7 +754,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -784,7 +775,6 @@ const softwares = [
             "DINUM": { "referentCount": 2, "userCount": 43 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -823,7 +813,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "softwareType": {
             "type": "stack"
         },
@@ -836,7 +826,6 @@ const softwares = [
             "CA du Puy-en-Velay": { "referentCount": 0, "userCount": 1 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -875,7 +864,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -887,7 +876,6 @@ const softwares = [
             "DINUM": { "referentCount": 2, "userCount": 43 }
         },
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -927,7 +915,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -935,7 +923,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -975,7 +962,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -983,7 +970,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -1023,7 +1009,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -1031,7 +1017,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -1071,7 +1056,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -1079,7 +1064,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -1119,7 +1103,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -1127,7 +1111,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -1167,7 +1150,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -1175,7 +1158,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -1215,7 +1197,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -1223,7 +1205,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     }),
     id<ApiTypes.Software>({
@@ -1263,7 +1244,7 @@ const softwares = [
         "addedTime": 1674739365178,
         "updateTime": 1674739365178,
         "dereferencing": undefined,
-        "categories": ["cloud"],
+        "applicationCategories": ["cloud"],
         "prerogatives": {
             "doRespectRgaa": false,
             "isFromFrenchPublicServices": false,
@@ -1271,7 +1252,6 @@ const softwares = [
         },
         "userAndReferentCountByOrganization": {},
         "keywords": [],
-        "applicationCategories": [],
         "programmingLanguages": []
     })
 ];
diff --git a/web/src/core/usecases/softwareCatalog/selectors.ts b/web/src/core/usecases/softwareCatalog/selectors.ts
index 8cbe7d5f..70edba50 100644
--- a/web/src/core/usecases/softwareCatalog/selectors.ts
+++ b/web/src/core/usecases/softwareCatalog/selectors.ts
@@ -286,7 +286,7 @@ const categoryOptions = createSelector(
             Array.from(
                 new Set(
                     internalSoftwares
-                        .map(({ categories }) => categories)
+                        .map(({ applicationCategories }) => applicationCategories)
                         .reduce((prev, curr) => [...prev, ...curr], [])
                 )
             ).map(category => [category, 0])
@@ -322,8 +322,8 @@ const categoryOptions = createSelector(
             });
         }
 
-        tmpSoftwares.forEach(({ categories }) =>
-            categories.forEach(
+        tmpSoftwares.forEach(({ applicationCategories }) =>
+            applicationCategories.forEach(
                 category => softwareCountInCurrentFilterByCategory[category]++
             )
         );
@@ -635,7 +635,9 @@ function filterByCategory(params: {
 }) {
     const { softwares, category } = params;
 
-    return softwares.filter(({ categories }) => categories.includes(category));
+    return softwares.filter(({ applicationCategories }) =>
+        applicationCategories.includes(category)
+    );
 }
 
 function filterByEnvironnement(params: {
@@ -717,14 +719,13 @@ function apiSoftwareToInternalSoftware(params: {
         testUrl,
         addedTime,
         updateTime,
-        categories,
+        applicationCategories,
         prerogatives,
         softwareType,
         userAndReferentCountByOrganization,
         similarSoftwares,
         keywords,
-        programmingLanguages,
-        applicationCategories
+        programmingLanguages
     } = apiSoftware;
 
     assert<
@@ -780,7 +781,7 @@ function apiSoftwareToInternalSoftware(params: {
         testUrl,
         addedTime,
         updateTime,
-        categories,
+        applicationCategories,
         "organizations": objectKeys(userAndReferentCountByOrganization),
         parentSoftware,
         softwareType,
@@ -812,8 +813,7 @@ function apiSoftwareToInternalSoftware(params: {
             return search;
         })(),
         userDeclaration,
-        programmingLanguages,
-        applicationCategories
+        programmingLanguages
     };
 }
 
@@ -833,7 +833,7 @@ function internalSoftwareToExternalSoftware(params: {
         testUrl,
         addedTime,
         updateTime,
-        categories,
+        applicationCategories,
         organizations,
         prerogatives: {
             isFromFrenchPublicServices,
@@ -845,7 +845,6 @@ function internalSoftwareToExternalSoftware(params: {
         softwareType,
         userDeclaration,
         programmingLanguages,
-        applicationCategories,
         ...rest
     } = internalSoftware;
 
diff --git a/web/src/core/usecases/softwareCatalog/state.ts b/web/src/core/usecases/softwareCatalog/state.ts
index 39be5de0..12d0f6c8 100644
--- a/web/src/core/usecases/softwareCatalog/state.ts
+++ b/web/src/core/usecases/softwareCatalog/state.ts
@@ -103,7 +103,6 @@ export namespace State {
         export type Internal = Common & {
             addedTime: number;
             updateTime: number;
-            categories: string[];
             organizations: string[];
             prerogatives: OmitFromExisting<
                 Prerogatives,
diff --git a/web/src/core/usecases/softwareCatalog/thunks.ts b/web/src/core/usecases/softwareCatalog/thunks.ts
index d1dd2df8..a9ff76c9 100644
--- a/web/src/core/usecases/softwareCatalog/thunks.ts
+++ b/web/src/core/usecases/softwareCatalog/thunks.ts
@@ -221,14 +221,13 @@ function apiSoftwareToInternalSoftware(params: {
         testUrl,
         addedTime,
         updateTime,
-        categories,
+        applicationCategories,
         prerogatives,
         softwareType,
         userAndReferentCountByOrganization,
         similarSoftwares,
         keywords,
-        programmingLanguages,
-        applicationCategories
+        programmingLanguages
     } = apiSoftware;
 
     assert<
@@ -302,7 +301,7 @@ function apiSoftwareToInternalSoftware(params: {
         testUrl,
         addedTime,
         updateTime,
-        categories,
+        applicationCategories,
         "organizations": objectKeys(userAndReferentCountByOrganization),
         parentSoftware,
         softwareType,
@@ -334,8 +333,7 @@ function apiSoftwareToInternalSoftware(params: {
             return search;
         })(),
         userDeclaration,
-        programmingLanguages,
-        applicationCategories
+        programmingLanguages
     };
 }