diff --git a/package-lock.json b/package-lock.json
index 3296c40..1e9ea4c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,14 +12,14 @@
         "@types/aws-lambda": "^8.10.101",
         "@types/node": "10.17.27",
         "@types/prettier": "2.6.0",
-        "aws-cdk-lib": "2.138.0",
+        "aws-cdk-lib": "2.77.0",
         "constructs": "^10.0.0",
         "release-it": "^14.12.5",
         "ts-node": "^10.7.0",
         "typescript": "~3.9.7"
       },
       "peerDependencies": {
-        "aws-cdk": "^2.138.0",
+        "aws-cdk": "^2.77.0",
         "constructs": "^10.0.0"
       }
     },
@@ -27,18 +27,20 @@
       "version": "2.2.202",
       "resolved": "https://registry.npmjs.org/@aws-cdk/asset-awscli-v1/-/asset-awscli-v1-2.2.202.tgz",
       "integrity": "sha512-JqlF0D4+EVugnG5dAsNZMqhu3HW7ehOXm5SDMxMbXNDMdsF0pxtQKNHRl52z1U9igsHmaFpUgSGjbhAJ+0JONg==",
-      "dev": true
+      "dev": true,
+      "license": "Apache-2.0"
     },
     "node_modules/@aws-cdk/asset-kubectl-v20": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/@aws-cdk/asset-kubectl-v20/-/asset-kubectl-v20-2.1.2.tgz",
       "integrity": "sha512-3M2tELJOxQv0apCIiuKQ4pAbncz9GuLwnKFqxifWfe77wuMxyTRPmxssYHs42ePqzap1LT6GDcPygGs+hHstLg==",
-      "dev": true
+      "dev": true,
+      "license": "Apache-2.0"
     },
-    "node_modules/@aws-cdk/asset-node-proxy-agent-v6": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/@aws-cdk/asset-node-proxy-agent-v6/-/asset-node-proxy-agent-v6-2.0.3.tgz",
-      "integrity": "sha512-twhuEG+JPOYCYPx/xy5uH2+VUsIEhPTzDY0F1KuB+ocjWWB/KEDiOVL19nHvbPCB6fhWnkykXEMJ4HHcKvjtvg==",
+    "node_modules/@aws-cdk/asset-node-proxy-agent-v5": {
+      "version": "2.0.166",
+      "resolved": "https://registry.npmjs.org/@aws-cdk/asset-node-proxy-agent-v5/-/asset-node-proxy-agent-v5-2.0.166.tgz",
+      "integrity": "sha512-j0xnccpUQHXJKPgCwQcGGNu4lRiC1PptYfdxBIH1L4dRK91iBxtSQHESRQX+yB47oGLaF/WfNN/aF3WXwlhikg==",
       "dev": true,
       "license": "Apache-2.0"
     },
@@ -586,9 +588,9 @@
       }
     },
     "node_modules/aws-cdk-lib": {
-      "version": "2.138.0",
-      "resolved": "https://registry.npmjs.org/aws-cdk-lib/-/aws-cdk-lib-2.138.0.tgz",
-      "integrity": "sha512-BdLOd6Fkl/7PH8RahRbhYQf3zRFCxVtOdkKOAZHHqtaNkmTyfkUGMXyzyQ4rIHvR8EOy1C1x5CAufqoZuJM0gA==",
+      "version": "2.77.0",
+      "resolved": "https://registry.npmjs.org/aws-cdk-lib/-/aws-cdk-lib-2.77.0.tgz",
+      "integrity": "sha512-T0GUFHBY1B+LkyGk1Df5E1PXwHa7BqvafD4pGvpwWqu8Mu9s/i0kp8YJu6xY//hEC5R8O7V6bfyQJ0S9pUqwQg==",
       "bundleDependencies": [
         "@balena/dockerignore",
         "case",
@@ -599,25 +601,23 @@
         "punycode",
         "semver",
         "table",
-        "yaml",
-        "mime-types"
+        "yaml"
       ],
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "@aws-cdk/asset-awscli-v1": "^2.2.202",
-        "@aws-cdk/asset-kubectl-v20": "^2.1.2",
-        "@aws-cdk/asset-node-proxy-agent-v6": "^2.0.3",
+        "@aws-cdk/asset-awscli-v1": "^2.2.97",
+        "@aws-cdk/asset-kubectl-v20": "^2.1.1",
+        "@aws-cdk/asset-node-proxy-agent-v5": "^2.0.77",
         "@balena/dockerignore": "^1.0.2",
         "case": "1.6.3",
-        "fs-extra": "^11.2.0",
-        "ignore": "^5.3.1",
+        "fs-extra": "^9.1.0",
+        "ignore": "^5.2.4",
         "jsonschema": "^1.4.1",
-        "mime-types": "^2.1.35",
         "minimatch": "^3.1.2",
-        "punycode": "^2.3.1",
-        "semver": "^7.6.0",
-        "table": "^6.8.2",
+        "punycode": "^2.3.0",
+        "semver": "^7.3.8",
+        "table": "^6.8.1",
         "yaml": "1.10.2"
       },
       "engines": {
@@ -682,6 +682,15 @@
         "node": ">=8"
       }
     },
+    "node_modules/aws-cdk-lib/node_modules/at-least-node": {
+      "version": "1.0.0",
+      "dev": true,
+      "inBundle": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">= 4.0.0"
+      }
+    },
     "node_modules/aws-cdk-lib/node_modules/balanced-match": {
       "version": "1.0.2",
       "dev": true,
@@ -744,27 +753,28 @@
       "license": "MIT"
     },
     "node_modules/aws-cdk-lib/node_modules/fs-extra": {
-      "version": "11.2.0",
+      "version": "9.1.0",
       "dev": true,
       "inBundle": true,
       "license": "MIT",
       "dependencies": {
+        "at-least-node": "^1.0.0",
         "graceful-fs": "^4.2.0",
         "jsonfile": "^6.0.1",
         "universalify": "^2.0.0"
       },
       "engines": {
-        "node": ">=14.14"
+        "node": ">=10"
       }
     },
     "node_modules/aws-cdk-lib/node_modules/graceful-fs": {
-      "version": "4.2.11",
+      "version": "4.2.10",
       "dev": true,
       "inBundle": true,
       "license": "ISC"
     },
     "node_modules/aws-cdk-lib/node_modules/ignore": {
-      "version": "5.3.1",
+      "version": "5.2.4",
       "dev": true,
       "inBundle": true,
       "license": "MIT",
@@ -826,27 +836,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/aws-cdk-lib/node_modules/mime-db": {
-      "version": "1.52.0",
-      "dev": true,
-      "inBundle": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.6"
-      }
-    },
-    "node_modules/aws-cdk-lib/node_modules/mime-types": {
-      "version": "2.1.35",
-      "dev": true,
-      "inBundle": true,
-      "license": "MIT",
-      "dependencies": {
-        "mime-db": "1.52.0"
-      },
-      "engines": {
-        "node": ">= 0.6"
-      }
-    },
     "node_modules/aws-cdk-lib/node_modules/minimatch": {
       "version": "3.1.2",
       "dev": true,
@@ -860,7 +849,7 @@
       }
     },
     "node_modules/aws-cdk-lib/node_modules/punycode": {
-      "version": "2.3.1",
+      "version": "2.3.0",
       "dev": true,
       "inBundle": true,
       "license": "MIT",
@@ -878,7 +867,7 @@
       }
     },
     "node_modules/aws-cdk-lib/node_modules/semver": {
-      "version": "7.6.0",
+      "version": "7.3.8",
       "dev": true,
       "inBundle": true,
       "license": "ISC",
@@ -936,7 +925,7 @@
       }
     },
     "node_modules/aws-cdk-lib/node_modules/table": {
-      "version": "6.8.2",
+      "version": "6.8.1",
       "dev": true,
       "inBundle": true,
       "license": "BSD-3-Clause",
@@ -952,7 +941,7 @@
       }
     },
     "node_modules/aws-cdk-lib/node_modules/universalify": {
-      "version": "2.0.1",
+      "version": "2.0.0",
       "dev": true,
       "inBundle": true,
       "license": "MIT",
diff --git a/package.json b/package.json
index faf9841..b8e8e44 100644
--- a/package.json
+++ b/package.json
@@ -16,14 +16,14 @@
     "@types/aws-lambda": "^8.10.101",
     "@types/node": "10.17.27",
     "@types/prettier": "2.6.0",
-    "aws-cdk-lib": "2.138.0",
+    "aws-cdk-lib": "2.77.0",
     "constructs": "^10.0.0",
     "release-it": "^14.12.5",
     "ts-node": "^10.7.0",
     "typescript": "~3.9.7"
   },
   "peerDependencies": {
-    "aws-cdk": "^2.138.0",
+    "aws-cdk": "^2.77.0",
     "constructs": "^10.0.0"
   },
   "repository": {
diff --git a/src/index.ts b/src/index.ts
index b222bb8..5d97160 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -35,7 +35,7 @@ export class CloudWatchAlarmCreator extends Construct {
             functionName: `${this.prefix}alarms-cr-function${this.postfix}`,
             code: lambda.Code.fromAsset(path.join(__dirname, "functions")),
             handler: "index.handler",
-            runtime: lambda.Runtime.NODEJS_20_X,
+            runtime: lambda.Runtime.NODEJS_18_X,
             memorySize: 512,
             timeout: cdk.Duration.minutes(1),
             logRetention: log.RetentionDays.ONE_DAY,