diff --git a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/ManagedEnvironments.json b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/ManagedEnvironments.json
index 22c3d2e00391..8b76eb50b93c 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/ManagedEnvironments.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/ManagedEnvironments.json
@@ -1828,6 +1828,11 @@
           "$ref": "./CommonDefinitions.json#/definitions/WorkloadProfileName",
           "description": "Workload profile type for the workloads to run on."
         },
+        "enableFips": {
+          "type": "boolean",
+          "default": false,
+          "description": "Whether to use a FIPS-enabled OS. Supported only for dedicated workload profiles."
+        },
         "workloadProfileType": {
           "$ref": "./CommonDefinitions.json#/definitions/WorkloadProfileType",
           "description": "Workload profile type for the workloads to run on."
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_CreateOrUpdate.json b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_CreateOrUpdate.json
index 2c95bbe8d989..9a234ae08110 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_CreateOrUpdate.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_CreateOrUpdate.json
@@ -74,6 +74,7 @@
         "workloadProfiles": [
           {
             "name": "My-GP-01",
+            "enableFips": true,
             "workloadProfileType": "GeneralPurpose",
             "minimumCount": 3,
             "maximumCount": 12
@@ -182,6 +183,7 @@
           "workloadProfiles": [
             {
               "name": "My-GP-01",
+              "enableFips": true,
               "workloadProfileType": "GeneralPurpose",
               "minimumCount": 3,
               "maximumCount": 12
@@ -285,6 +287,7 @@
           "workloadProfiles": [
             {
               "name": "My-GP-01",
+              "enableFips": true,
               "workloadProfileType": "GeneralPurpose",
               "minimumCount": 3,
               "maximumCount": 12
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_CustomInfrastructureResourceGroup_Create.json b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_CustomInfrastructureResourceGroup_Create.json
index 5f15982171da..5b09fe8ed0f5 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_CustomInfrastructureResourceGroup_Create.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_CustomInfrastructureResourceGroup_Create.json
@@ -26,6 +26,7 @@
         "workloadProfiles": [
           {
             "name": "My-GP-01",
+            "enableFips": true,
             "workloadProfileType": "GeneralPurpose",
             "minimumCount": 3,
             "maximumCount": 12
@@ -83,6 +84,7 @@
           "workloadProfiles": [
             {
               "name": "My-GP-01",
+              "enableFips": true,
               "workloadProfileType": "GeneralPurpose",
               "minimumCount": 3,
               "maximumCount": 12
@@ -139,6 +141,7 @@
           "workloadProfiles": [
             {
               "name": "My-GP-01",
+              "enableFips": true,
               "workloadProfileType": "GeneralPurpose",
               "minimumCount": 3,
               "maximumCount": 12
@@ -166,4 +169,3 @@
     }
   }
 }
-
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_Get.json b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_Get.json
index 68c89369499f..0090288e464d 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_Get.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_Get.json
@@ -33,6 +33,7 @@
           "workloadProfiles": [
             {
               "name": "My-GP-01",
+              "enableFips": true,
               "workloadProfileType": "GeneralPurpose",
               "minimumCount": 3,
               "maximumCount": 12
@@ -76,4 +77,3 @@
     }
   }
 }
-
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_ListByResourceGroup.json b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_ListByResourceGroup.json
index 38c01d9b9480..7adff3ab5810 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_ListByResourceGroup.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_ListByResourceGroup.json
@@ -35,6 +35,7 @@
               "workloadProfiles": [
                 {
                   "name": "My-GP-01",
+                  "enableFips": true,
                   "workloadProfileType": "GeneralPurpose",
                   "minimumCount": 3,
                   "maximumCount": 12
@@ -91,4 +92,3 @@
     }
   }
 }
-
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_ListBySubscription.json b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_ListBySubscription.json
index 2d740beeade2..cd43a58907f8 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_ListBySubscription.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_ListBySubscription.json
@@ -34,6 +34,7 @@
               "workloadProfiles": [
                 {
                   "name": "My-GP-01",
+                  "enableFips": true,
                   "workloadProfileType": "GeneralPurpose",
                   "minimumCount": 3,
                   "maximumCount": 12
@@ -96,4 +97,3 @@
     }
   }
 }
-
diff --git a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_Patch.json b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_Patch.json
index 23421e2835d3..8e9974cbe9dc 100644
--- a/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_Patch.json
+++ b/specification/app/resource-manager/Microsoft.App/preview/2024-08-02-preview/examples/ManagedEnvironments_Patch.json
@@ -37,6 +37,7 @@
           "workloadProfiles": [
             {
               "name": "My-GP-01",
+              "enableFips": true,
               "workloadProfileType": "GeneralPurpose",
               "minimumCount": 3,
               "maximumCount": 12
@@ -69,4 +70,3 @@
     }
   }
 }
-