diff --git a/server/api/helpers/actions/update-one.js b/server/api/helpers/actions/update-one.js
index 7835fa746..1d886ac5b 100644
--- a/server/api/helpers/actions/update-one.js
+++ b/server/api/helpers/actions/update-one.js
@@ -59,6 +59,9 @@ module.exports = {
             cards: [inputs.card],
           },
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
     }
diff --git a/server/api/helpers/attachments/update-one.js b/server/api/helpers/attachments/update-one.js
index 49660206d..a16b53fb0 100644
--- a/server/api/helpers/attachments/update-one.js
+++ b/server/api/helpers/attachments/update-one.js
@@ -59,6 +59,9 @@ module.exports = {
             cards: [inputs.card],
           },
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
     }
diff --git a/server/api/helpers/board-memberships/update-one.js b/server/api/helpers/board-memberships/update-one.js
index 639489078..28c23a89b 100644
--- a/server/api/helpers/board-memberships/update-one.js
+++ b/server/api/helpers/board-memberships/update-one.js
@@ -62,6 +62,9 @@ module.exports = {
             boards: [inputs.board],
           },
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
     }
diff --git a/server/api/helpers/boards/update-one.js b/server/api/helpers/boards/update-one.js
index e20324ddb..374484255 100644
--- a/server/api/helpers/boards/update-one.js
+++ b/server/api/helpers/boards/update-one.js
@@ -100,6 +100,9 @@ module.exports = {
             projects: [inputs.project],
           },
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
     }
diff --git a/server/api/helpers/cards/update-one.js b/server/api/helpers/cards/update-one.js
index 9be5c5764..f83f42ad6 100644
--- a/server/api/helpers/cards/update-one.js
+++ b/server/api/helpers/cards/update-one.js
@@ -264,6 +264,9 @@ module.exports = {
             lists: [list],
           },
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
 
diff --git a/server/api/helpers/labels/update-one.js b/server/api/helpers/labels/update-one.js
index 01efcdbd2..a27b9806d 100644
--- a/server/api/helpers/labels/update-one.js
+++ b/server/api/helpers/labels/update-one.js
@@ -91,6 +91,9 @@ module.exports = {
             boards: [inputs.board],
           },
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
     }
diff --git a/server/api/helpers/lists/update-one.js b/server/api/helpers/lists/update-one.js
index 0335b9eed..6fb751082 100644
--- a/server/api/helpers/lists/update-one.js
+++ b/server/api/helpers/lists/update-one.js
@@ -91,6 +91,9 @@ module.exports = {
             boards: [inputs.board],
           },
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
     }
diff --git a/server/api/helpers/notifications/update-many.js b/server/api/helpers/notifications/update-many.js
index 7775919d5..5f5f86727 100644
--- a/server/api/helpers/notifications/update-many.js
+++ b/server/api/helpers/notifications/update-many.js
@@ -48,6 +48,7 @@ module.exports = {
         inputs.request,
       );
 
+      // TODO: with prevData?
       sails.helpers.utils.sendWebhooks.with({
         event: 'notificationUpdate',
         data: {
diff --git a/server/api/helpers/projects/update-one.js b/server/api/helpers/projects/update-one.js
index f9e11eec4..db3e94187 100644
--- a/server/api/helpers/projects/update-one.js
+++ b/server/api/helpers/projects/update-one.js
@@ -118,6 +118,9 @@ module.exports = {
         data: {
           item: project,
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
     }
diff --git a/server/api/helpers/tasks/update-one.js b/server/api/helpers/tasks/update-one.js
index 94c1d4b7d..7008d139a 100644
--- a/server/api/helpers/tasks/update-one.js
+++ b/server/api/helpers/tasks/update-one.js
@@ -101,6 +101,9 @@ module.exports = {
             cards: [inputs.card],
           },
         },
+        prevData: {
+          item: inputs.record,
+        },
         user: inputs.actorUser,
       });
     }
diff --git a/server/api/helpers/users/update-one.js b/server/api/helpers/users/update-one.js
index 325807b2f..05f025f7a 100644
--- a/server/api/helpers/users/update-one.js
+++ b/server/api/helpers/users/update-one.js
@@ -159,6 +159,9 @@ module.exports = {
           data: {
             item: user,
           },
+          prevData: {
+            item: inputs.record,
+          },
           user: inputs.actorUser,
         });
       }
diff --git a/server/api/helpers/utils/send-webhooks.js b/server/api/helpers/utils/send-webhooks.js
index 0458a875c..87db95cdd 100644
--- a/server/api/helpers/utils/send-webhooks.js
+++ b/server/api/helpers/utils/send-webhooks.js
@@ -97,10 +97,11 @@ const jsonifyData = (data) => {
  * @param {*} webhook - Webhook configuration.
  * @param {string} event - The event (see {@link EVENT_TYPES}).
  * @param {Data} data - The data object containing event data and optionally included data.
+ * @param {Data} [prevData] - The data object containing previous state of data (optional).
  * @param {ref} user - User object associated with the event.
  * @returns {Promise<void>}
  */
-async function sendWebhook(webhook, event, data, user) {
+async function sendWebhook(webhook, event, data, prevData, user) {
   const headers = {
     'Content-Type': 'application/json',
     'User-Agent': `planka (+${sails.config.custom.baseUrl})`,
@@ -113,6 +114,7 @@ async function sendWebhook(webhook, event, data, user) {
   const body = JSON.stringify({
     event,
     data: jsonifyData(data),
+    prevData: prevData && jsonifyData(prevData),
     user: sails.helpers.utils.jsonifyRecord(user),
   });
 
@@ -148,6 +150,9 @@ module.exports = {
       type: 'ref',
       required: true,
     },
+    prevData: {
+      type: 'ref',
+    },
     user: {
       type: 'ref',
       required: true,
@@ -172,7 +177,7 @@ module.exports = {
         return;
       }
 
-      sendWebhook(webhook, inputs.event, inputs.data, inputs.user);
+      sendWebhook(webhook, inputs.event, inputs.data, inputs.prevData, inputs.user);
     });
   },
 };