diff --git a/components/schemas/infrastructure/servers/task/ServerTask.yml b/components/schemas/infrastructure/servers/task/ServerTask.yml
index 21645644..42e39f17 100644
--- a/components/schemas/infrastructure/servers/task/ServerTask.yml
+++ b/components/schemas/infrastructure/servers/task/ServerTask.yml
@@ -9,6 +9,7 @@ discriminator:
     compute.spawner.restart: ServerRestartComputeSpawnerAction.yml
     evacuation.start: ServerEvacuateAction.yml
     evacuation.reset: ServerEvacuateResetAction.yml
+    unquarantine: ServerUnquarantineAction.yml
 oneOf:
   - $ref: ServerReconfigureSharedFsAction.yml
   - $ref: ServerReconfigureFeaturesAction.yml
@@ -17,3 +18,4 @@ oneOf:
   - $ref: ServerRestartComputeSpawnerAction.yml
   - $ref: ServerEvacuateAction.yml
   - $ref: ServerEvacuateResetAction.yml
+  - $ref: ServerUnquarantineAction.yml
diff --git a/components/schemas/infrastructure/servers/task/ServerUnquarantineAction.yml b/components/schemas/infrastructure/servers/task/ServerUnquarantineAction.yml
new file mode 100644
index 00000000..43cbac14
--- /dev/null
+++ b/components/schemas/infrastructure/servers/task/ServerUnquarantineAction.yml
@@ -0,0 +1,18 @@
+title: ServerUnquarantineAction
+type: object
+required:
+  - action
+  - contents
+properties:
+  action:
+    type: string
+    description: The action to take.
+    enum:
+      - unquarantine
+  contents:
+    type: object
+    required:
+      - cluster
+    properties:
+      cluster:
+        type: string