diff --git a/src/core/usecases/softwareDetails/state.ts b/src/core/usecases/softwareDetails/state.ts
index 4e4cbc33..b38e99ea 100644
--- a/src/core/usecases/softwareDetails/state.ts
+++ b/src/core/usecases/softwareDetails/state.ts
@@ -79,6 +79,7 @@ export namespace State {
         testUrl: string | undefined;
         instances:
             | {
+                  id: number;
                   organization: string;
                   instanceUrl: string;
                   targetAudience: string;
diff --git a/src/core/usecases/softwareDetails/thunks.ts b/src/core/usecases/softwareDetails/thunks.ts
index d61e3a3f..8e26334d 100644
--- a/src/core/usecases/softwareDetails/thunks.ts
+++ b/src/core/usecases/softwareDetails/thunks.ts
@@ -267,6 +267,7 @@ function apiSoftwareToSoftware(params: {
                           instance.publicUrl === undefined
                               ? undefined
                               : {
+                                    "id": instance.id,
                                     "instanceUrl": instance.publicUrl,
                                     "organization": instance.organization,
                                     "targetAudience": instance.targetAudience
diff --git a/src/ui/App.tsx b/src/ui/App.tsx
index f2a443e9..7ba56850 100644
--- a/src/ui/App.tsx
+++ b/src/ui/App.tsx
@@ -193,6 +193,7 @@ export const { i18n } = declareComponentKeys<
     | "update software"
     | "add software or service"
     | "add instance"
+    | "update instance"
     | "required"
     | "invalid url"
     | "invalid version"
diff --git a/src/ui/i18n/i18n.tsx b/src/ui/i18n/i18n.tsx
index 66b50ef9..fa5b1f27 100644
--- a/src/ui/i18n/i18n.tsx
+++ b/src/ui/i18n/i18n.tsx
@@ -67,6 +67,7 @@ const {
                 "update software": "Update Software",
                 "add software or service": "Add Software or Service",
                 "add instance": "Add Instance",
+                "update instance": "Update Instance",
                 "required": "This field is required",
                 "invalid url": 'Invalid URL. It must start with "http"',
                 "invalid version": "The value must be numeric (e.g., 2.0.1)",
@@ -580,7 +581,8 @@ const {
                     `${instanceCount} maintained instance by ${publicOrganizationCount} public organisation`,
                 "concerned public": "Concerned public : ",
                 "go to instance": "Open the instance",
-                "add instance": "Reference new instance"
+                "add instance": "Reference new instance",
+                "edit instance": "Edit instance"
             },
             "SimilarSoftwareTab": {
                 "similar software in sill": "Alike software in the SILL",
@@ -749,6 +751,7 @@ const {
                 "update software": "Mettre à jour un logiciel",
                 "add software or service": "Ajouter un logiciel ou un service",
                 "add instance": "Ajouter une instance",
+                "update instance": "Modifier une instance",
                 "required": "Ce champ est requis",
                 "invalid url": 'URL invalide. Elle doit commencer par "http"',
                 "invalid version": "La valeur doit être numérique (Exemple : 2.0.1)",
@@ -1281,7 +1284,8 @@ const {
                     `${instanceCount} instances maintenues par ${publicOrganizationCount} organisations publiques`,
                 "concerned public": "Public concerné : ",
                 "go to instance": "Accéder à l'instance",
-                "add instance": "Référencer une nouvelle instance"
+                "add instance": "Référencer une nouvelle instance",
+                "edit instance": "Éditer l'instance"
             },
             "SimilarSoftwareTab": {
                 "similar software in sill": "Logiciels similaires dans le SILL",
diff --git a/src/ui/pages/instanceForm/InstanceForm.tsx b/src/ui/pages/instanceForm/InstanceForm.tsx
index 36ce7168..a88b979f 100644
--- a/src/ui/pages/instanceForm/InstanceForm.tsx
+++ b/src/ui/pages/instanceForm/InstanceForm.tsx
@@ -86,6 +86,24 @@ export default function InstanceForm(props: Props) {
     const { t } = useTranslation({ InstanceForm });
     const { t: tCommon } = useTranslation({ "App": null });
 
+    const translationByRoute: Record<
+        PageRoute["name"],
+        { title: string; submitLabel: string; breadcrumbs: string }
+    > = {
+        instanceCreationForm: {
+            title: t("title add instance form"),
+            breadcrumbs: t("breadcrumb add instance"),
+            submitLabel: tCommon("add instance")
+        },
+        instanceUpdateForm: {
+            title: t("title update instance form"),
+            breadcrumbs: t("breadcrumb update instance"),
+            submitLabel: tCommon("update instance")
+        }
+    };
+
+    const translations = translationByRoute[route.name];
+
     const evtActionSubmitStep = useConst(() => Evt.create());
 
     const { lang } = useLang();
@@ -106,14 +124,7 @@ export default function InstanceForm(props: Props) {
                             "label": tCommon("add software or service")
                         }
                     ]}
-                    currentPageLabel={(() => {
-                        switch (route.name) {
-                            case "instanceCreationForm":
-                                return t("breadcrumb add instance");
-                            case "instanceUpdateForm":
-                                return t("breadcrumb update instance");
-                        }
-                    })()}
+                    currentPageLabel={translations.breadcrumbs}
                     className={classes.breadcrumb}
                 />
                 <div className={classes.headerDeclareUserOrReferent}>
@@ -125,16 +136,7 @@ export default function InstanceForm(props: Props) {
                     >
                         <i className={fr.cx("fr-icon-arrow-left-s-line")} />
                     </a>
-                    <h4 className={classes.title}>
-                        {(() => {
-                            switch (route.name) {
-                                case "instanceCreationForm":
-                                    return t("title add instance form");
-                                case "instanceUpdateForm":
-                                    return t("title update instance form");
-                            }
-                        })()}
-                    </h4>
+                    <h4 className={classes.title}>{translations.title}</h4>
                 </div>
                 <Stepper
                     currentStep={step}
@@ -193,7 +195,7 @@ export default function InstanceForm(props: Props) {
                 >
                     {isLastStep ? (
                         <>
-                            {tCommon("add instance")}
+                            {translations.submitLabel}
                             {isSubmitting && (
                                 <CircularProgress
                                     size={20}
diff --git a/src/ui/pages/softwareDetails/ReferencedInstancesTab.tsx b/src/ui/pages/softwareDetails/ReferencedInstancesTab.tsx
index 2b682747..17bbbe5f 100644
--- a/src/ui/pages/softwareDetails/ReferencedInstancesTab.tsx
+++ b/src/ui/pages/softwareDetails/ReferencedInstancesTab.tsx
@@ -8,15 +8,24 @@ import { Accordion } from "@codegouvfr/react-dsfr/Accordion";
 import { groupBy } from "lodash";
 import { Button } from "@codegouvfr/react-dsfr/Button";
 import type { Link } from "type-route";
+import { useCore } from "../../../core";
+import { routes } from "../../routes";
 
 export type Props = {
     className?: string;
-    instanceList: { organization: string; instanceUrl: string; targetAudience: string }[];
+    instanceList: {
+        id: number;
+        organization: string;
+        instanceUrl: string;
+        targetAudience: string;
+    }[];
     createInstanceLink: Link;
 };
 
 export const ReferencedInstancesTab = (props: Props) => {
     const { className, instanceList, createInstanceLink, ...rest } = props;
+    const { userAuthentication } = useCore().functions;
+    const isUserLoggedIn = userAuthentication.getIsUserLoggedIn();
 
     /** Assert to make sure all props are deconstructed */
     assert<Equals<typeof rest, {}>>();
@@ -73,6 +82,21 @@ export const ReferencedInstancesTab = (props: Props) => {
                                             {targetAudience}
                                         </p>
                                         <div className={classes.footer}>
+                                            {isUserLoggedIn && (
+                                                <Button
+                                                    className={fr.cx("fr-mr-3w")}
+                                                    onClick={() =>
+                                                        routes
+                                                            .instanceUpdateForm({
+                                                                id: instance.id
+                                                            })
+                                                            .push()
+                                                    }
+                                                >
+                                                    {t("edit instance")}
+                                                </Button>
+                                            )}
+
                                             <a
                                                 className={cx(
                                                     fr.cx("fr-btn", "fr-btn--secondary")
@@ -139,4 +163,5 @@ export const { i18n } = declareComponentKeys<
     | "concerned public"
     | "go to instance"
     | "add instance"
+    | "edit instance"
 >()({ ReferencedInstancesTab });