diff --git a/lerna-package-lock.json b/lerna-package-lock.json
index 281d5cd06ba6..909a980b3da3 100644
--- a/lerna-package-lock.json
+++ b/lerna-package-lock.json
@@ -3284,9 +3284,9 @@
 					}
 				},
 				"@types/node": {
-					"version": "12.19.15",
-					"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.15.tgz",
-					"integrity": "sha512-lowukE3GUI+VSYSu6VcBXl14d61Rp5hA1D+61r16qnwC0lYNSqdxcvRh0pswejorHfS+HgwBasM8jLXz0/aOsw=="
+					"version": "12.19.16",
+					"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.16.tgz",
+					"integrity": "sha512-7xHmXm/QJ7cbK2laF+YYD7gb5MggHIIQwqyjin3bpEGiSuvScMQ5JZZXPvRipi1MwckTQbJZROMns/JxdnIL1Q=="
 				},
 				"ansi-regex": {
 					"version": "2.1.1",
@@ -3563,9 +3563,9 @@
 					}
 				},
 				"@types/node": {
-					"version": "12.19.15",
-					"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.15.tgz",
-					"integrity": "sha512-lowukE3GUI+VSYSu6VcBXl14d61Rp5hA1D+61r16qnwC0lYNSqdxcvRh0pswejorHfS+HgwBasM8jLXz0/aOsw=="
+					"version": "12.19.16",
+					"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.16.tgz",
+					"integrity": "sha512-7xHmXm/QJ7cbK2laF+YYD7gb5MggHIIQwqyjin3bpEGiSuvScMQ5JZZXPvRipi1MwckTQbJZROMns/JxdnIL1Q=="
 				}
 			}
 		},
@@ -24565,9 +24565,9 @@
 					}
 				},
 				"@types/node": {
-					"version": "12.19.15",
-					"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.15.tgz",
-					"integrity": "sha512-lowukE3GUI+VSYSu6VcBXl14d61Rp5hA1D+61r16qnwC0lYNSqdxcvRh0pswejorHfS+HgwBasM8jLXz0/aOsw=="
+					"version": "12.19.16",
+					"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.16.tgz",
+					"integrity": "sha512-7xHmXm/QJ7cbK2laF+YYD7gb5MggHIIQwqyjin3bpEGiSuvScMQ5JZZXPvRipi1MwckTQbJZROMns/JxdnIL1Q=="
 				},
 				"ansi-regex": {
 					"version": "2.1.1",
@@ -25911,18 +25911,6 @@
 				}
 			}
 		},
-		"old-test-driver-definitions": {
-			"version": "npm:@fluidframework/test-driver-definitions@0.34.0",
-			"resolved": "https://registry.npmjs.org/@fluidframework/test-driver-definitions/-/test-driver-definitions-0.34.0.tgz",
-			"integrity": "sha512-uGqNM86lnvy24fvszUH02AC5mjnBvijXFqaQt34fq/5dhud40r7PH3uLPpR7q5hnxJ4oCWjym4icgF7NH8Jz7g==",
-			"requires": {
-				"@fluidframework/core-interfaces": "^0.34.0",
-				"@fluidframework/driver-definitions": "^0.34.0",
-				"@fluidframework/protocol-definitions": "^0.1019.0",
-				"@fluidframework/server-local-server": "^0.1019.0",
-				"uuid": "^8.3.1"
-			}
-		},
 		"old-test-utils": {
 			"version": "npm:@fluidframework/test-utils@0.34.0",
 			"resolved": "https://registry.npmjs.org/@fluidframework/test-utils/-/test-utils-0.34.0.tgz",
@@ -26412,9 +26400,9 @@
 					},
 					"dependencies": {
 						"@types/node": {
-							"version": "12.19.15",
-							"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.15.tgz",
-							"integrity": "sha512-lowukE3GUI+VSYSu6VcBXl14d61Rp5hA1D+61r16qnwC0lYNSqdxcvRh0pswejorHfS+HgwBasM8jLXz0/aOsw=="
+							"version": "12.19.16",
+							"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.16.tgz",
+							"integrity": "sha512-7xHmXm/QJ7cbK2laF+YYD7gb5MggHIIQwqyjin3bpEGiSuvScMQ5JZZXPvRipi1MwckTQbJZROMns/JxdnIL1Q=="
 						}
 					}
 				},
@@ -26437,9 +26425,9 @@
 					},
 					"dependencies": {
 						"@types/node": {
-							"version": "12.19.15",
-							"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.15.tgz",
-							"integrity": "sha512-lowukE3GUI+VSYSu6VcBXl14d61Rp5hA1D+61r16qnwC0lYNSqdxcvRh0pswejorHfS+HgwBasM8jLXz0/aOsw=="
+							"version": "12.19.16",
+							"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.16.tgz",
+							"integrity": "sha512-7xHmXm/QJ7cbK2laF+YYD7gb5MggHIIQwqyjin3bpEGiSuvScMQ5JZZXPvRipi1MwckTQbJZROMns/JxdnIL1Q=="
 						},
 						"jwt-decode": {
 							"version": "3.1.2",
@@ -26464,9 +26452,9 @@
 					},
 					"dependencies": {
 						"@types/node": {
-							"version": "12.19.15",
-							"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.15.tgz",
-							"integrity": "sha512-lowukE3GUI+VSYSu6VcBXl14d61Rp5hA1D+61r16qnwC0lYNSqdxcvRh0pswejorHfS+HgwBasM8jLXz0/aOsw=="
+							"version": "12.19.16",
+							"resolved": "https://registry.npmjs.org/@types/node/-/node-12.19.16.tgz",
+							"integrity": "sha512-7xHmXm/QJ7cbK2laF+YYD7gb5MggHIIQwqyjin3bpEGiSuvScMQ5JZZXPvRipi1MwckTQbJZROMns/JxdnIL1Q=="
 						}
 					}
 				},
diff --git a/packages/dds/merge-tree/src/test/mergeTree.markRangeRemoved.deltaCallback.spec.ts b/packages/dds/merge-tree/src/test/mergeTree.markRangeRemoved.deltaCallback.spec.ts
index ff131d7f3fe2..0488d47aa308 100644
--- a/packages/dds/merge-tree/src/test/mergeTree.markRangeRemoved.deltaCallback.spec.ts
+++ b/packages/dds/merge-tree/src/test/mergeTree.markRangeRemoved.deltaCallback.spec.ts
@@ -88,6 +88,7 @@ describe("MergeTree", () => {
                 [MergeTreeDeltaType.REMOVE]: 1,
                 [MergeTreeMaintenanceType.SPLIT]: 2,
                 [MergeTreeMaintenanceType.UNLINK]: 1,
+                [MergeTreeMaintenanceType.ACKNOWLEDGED]: 1,
             });
         });