diff --git a/.github/workflows/build-and-push-docker-image.yml b/.github/workflows/build-and-push-docker-image.yml
index fb89db0f..12dd5c6a 100644
--- a/.github/workflows/build-and-push-docker-image.yml
+++ b/.github/workflows/build-and-push-docker-image.yml
@@ -14,7 +14,7 @@ env:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
diff --git a/.github/workflows/bump-version.yml b/.github/workflows/bump-version.yml
index a88fa066..8e03f837 100644
--- a/.github/workflows/bump-version.yml
+++ b/.github/workflows/bump-version.yml
@@ -5,7 +5,7 @@ on: [pull_request]
 jobs:
   # If pull request was merged then we should check for a package version update
   check-version-update:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       # Checkout to target branch
       - uses: actions/checkout@v2
@@ -33,7 +33,7 @@ jobs:
 
   bump-version:
     needs: check-version-update
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       # Checkout to target branch
       - uses: actions/checkout@v2
diff --git a/.github/workflows/integration-tests.yml b/.github/workflows/integration-tests.yml
index 9f895130..3fcacf69 100644
--- a/.github/workflows/integration-tests.yml
+++ b/.github/workflows/integration-tests.yml
@@ -6,7 +6,7 @@ on:
 jobs:
   tests:
     name: Run integration tests
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
 
diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index c7a6571d..f401b00e 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -5,7 +5,7 @@ on: [pull_request]
 jobs:
   lint:
     name: ESlint
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
       - name: Use Node.js
diff --git a/.github/workflows/pr-to-prod.yml b/.github/workflows/pr-to-prod.yml
index f6bded4d..2d269b85 100644
--- a/.github/workflows/pr-to-prod.yml
+++ b/.github/workflows/pr-to-prod.yml
@@ -10,7 +10,7 @@ on:
 jobs:
   update-from-master:
     if: github.event.pull_request.merged == true
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6683ebe1..8e30ca6e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -6,7 +6,7 @@ on:
 jobs:
   build:
     name: Run Jest tests
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
       - name: Install modules
diff --git a/.github/workflows/update-monorepository.yml b/.github/workflows/update-monorepository.yml
index 0ef42625..3c05a600 100644
--- a/.github/workflows/update-monorepository.yml
+++ b/.github/workflows/update-monorepository.yml
@@ -7,7 +7,7 @@ env:
   REPOSITORY_MONO_PATH: api
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - name: Mono repository update
         uses: peter-evans/repository-dispatch@v1
diff --git a/package.json b/package.json
index 10a4f8c0..d2cf072c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hawk.api",
-  "version": "1.1.17",
+  "version": "1.1.19",
   "main": "index.ts",
   "license": "UNLICENSED",
   "scripts": {
diff --git a/src/typeDefs/event.ts b/src/typeDefs/event.ts
index 8d609a52..1881c27e 100644
--- a/src/typeDefs/event.ts
+++ b/src/typeDefs/event.ts
@@ -247,7 +247,7 @@ type RepetitionPayload {
 }
 
 """
-Event's repetitions. Make Event unique by repetition's payload
+Repetition of the event
 """
 type Repetition {
   """
@@ -263,7 +263,12 @@ type Repetition {
   """
   Event's payload patch
   """
-  payload: RepetitionPayload!
+  payload: RepetitionPayload
+
+  """
+  Delta of the event's payload, stringified JSON
+  """
+  delta: String
 }
 
 """