diff --git a/public/locales/en/modules/calendar.json b/public/locales/en/modules/calendar.json
index fe7fc32ce..5b3aefe0f 100644
--- a/public/locales/en/modules/calendar.json
+++ b/public/locales/en/modules/calendar.json
@@ -4,6 +4,9 @@
     "description": "Displays a calendar with upcoming releases, from supported integrations.",
     "settings": {
       "title": "Settings for Calendar widget",
+      "useSonarrv4": {
+        "label": "Use Sonarr v4 API"
+      },
       "sundayStart": {
         "label": "Start the week on Sunday"
       },
diff --git a/src/modules/common/MediaDisplay.tsx b/src/modules/common/MediaDisplay.tsx
index 61344cf34..453a262e3 100644
--- a/src/modules/common/MediaDisplay.tsx
+++ b/src/modules/common/MediaDisplay.tsx
@@ -152,6 +152,10 @@ export function RadarrMediaDisplay(props: any) {
 
 export function SonarrMediaDisplay(props: any) {
   const { media }: { media: any } = props;
+  const { config } = useConfigContext();
+  const calendar = config?.widgets.find((w) => w.id === 'calendar');
+  const useSonarrv4 = calendar?.properties.useSonarrv4 ?? false;
+
   // Find a poster CoverType
   const poster = media.series.images.find((image: any) => image.coverType === 'poster');
   // Return a movie poster containting the title and the description
@@ -162,7 +166,7 @@ export function SonarrMediaDisplay(props: any) {
         genres: media.series.genres ?? [],
         overview: media.overview ?? media.series.overview ?? '',
         title: media.series.title,
-        poster: poster ? poster.url : undefined,
+        poster: useSonarrv4 ? poster.remoteUrl : poster.url,
         episodeNumber: media.episodeNumber,
         seasonNumber: media.seasonNumber,
         episodetitle: media.title,
diff --git a/src/pages/api/modules/calendar.ts b/src/pages/api/modules/calendar.ts
index d454497a9..dd90fc8c8 100644
--- a/src/pages/api/modules/calendar.ts
+++ b/src/pages/api/modules/calendar.ts
@@ -35,6 +35,10 @@ async function Get(req: NextApiRequest, res: NextApiResponse) {
 
   const config = getConfig(configName);
 
+  // Find the calendar widget in the config
+  const calendar = config.widgets.find((w) => w.id === 'calendar');
+  const useSonarrv4 = calendar?.properties.useSonarrv4 ?? false;
+
   const mediaAppIntegrationTypes: AppIntegrationType['type'][] = [
     'sonarr',
     'radarr',
@@ -45,6 +49,13 @@ async function Get(req: NextApiRequest, res: NextApiResponse) {
     (app) => app.integration && mediaAppIntegrationTypes.includes(app.integration.type)
   );
 
+  const IntegrationTypeEndpointMap = new Map<AppIntegrationType['type'], string>([
+     ['sonarr', useSonarrv4 ? '/api/v3/calendar' : '/api/calendar'],
+    ['radarr', '/api/v3/calendar'],
+    ['lidarr', '/api/v1/calendar'],
+    ['readarr', '/api/v1/calendar'],
+  ]);
+
   try {
     const medias = await Promise.all(
       await mediaApps.map(async (app) => {
@@ -71,7 +82,7 @@ async function Get(req: NextApiRequest, res: NextApiResponse) {
         if (!apiKey) return { type: integration.type, items: [], success: false };
         return axios
           .get(
-            `${origin}${endpoint}?apiKey=${apiKey}&end=${end.toISOString()}&start=${start.toISOString()}`
+            `${origin}${endpoint}?apiKey=${apiKey}&end=${end.toISOString()}&start=${start.toISOString()}&includeSeries=true&includeEpisodeFile=true&includeEpisodeImages=true`
           )
           .then((x) => ({ type: integration.type, items: x.data as any[], success: true }))
           .catch((err) => {
@@ -87,7 +98,7 @@ async function Get(req: NextApiRequest, res: NextApiResponse) {
       })
     );
 
-    const countFailed = medias.filter(x => !x.success).length;
+    const countFailed = medias.filter((x) => !x.success).length;
     if (countFailed > 0) {
       Consola.warn(`A total of ${countFailed} apps for the calendar widget failed`);
     }
@@ -111,10 +122,3 @@ async function Get(req: NextApiRequest, res: NextApiResponse) {
     });
   }
 }
-
-const IntegrationTypeEndpointMap = new Map<AppIntegrationType['type'], string>([
-  ['sonarr', '/api/calendar'],
-  ['radarr', '/api/v3/calendar'],
-  ['lidarr', '/api/v1/calendar'],
-  ['readarr', '/api/v1/calendar'],
-]);
diff --git a/src/widgets/calendar/CalendarTile.tsx b/src/widgets/calendar/CalendarTile.tsx
index f076160e3..f06ca88d2 100644
--- a/src/widgets/calendar/CalendarTile.tsx
+++ b/src/widgets/calendar/CalendarTile.tsx
@@ -16,6 +16,10 @@ const definition = defineWidget({
   id: 'calendar',
   icon: IconCalendarTime,
   options: {
+    useSonarrv4: {
+      type: 'switch',
+      defaultValue: false,
+    },
     sundayStart: {
       type: 'switch',
       defaultValue: false,