diff --git a/examples/simple_erc20/package-lock.json b/examples/simple_erc20/package-lock.json
index 65bfda8c0f..1fce933a8f 100644
--- a/examples/simple_erc20/package-lock.json
+++ b/examples/simple_erc20/package-lock.json
@@ -11,7 +11,7 @@
             "devDependencies": {
                 "@dfinity/agent": "0.11.1",
                 "ts-node": "10.7.0",
-                "typescript": "4.6.3"
+                "typescript": "^5.2.2"
             }
         },
         "node_modules/@adraffy/ens-normalize": {
@@ -953,18 +953,6 @@
                 }
             }
         },
-        "node_modules/azle/node_modules/typescript": {
-            "version": "5.2.2",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
-            "integrity": "sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w==",
-            "bin": {
-                "tsc": "bin/tsc",
-                "tsserver": "bin/tsserver"
-            },
-            "engines": {
-                "node": ">=14.17"
-            }
-        },
         "node_modules/base-x": {
             "version": "4.0.0",
             "resolved": "https://registry.npmjs.org/base-x/-/base-x-4.0.0.tgz",
@@ -2142,15 +2130,15 @@
             "integrity": "sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA=="
         },
         "node_modules/typescript": {
-            "version": "4.6.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.3.tgz",
-            "integrity": "sha512-yNIatDa5iaofVozS/uQJEl3JRWLKKGJKh6Yaiv0GLGSuhpFJe7P3SbHZ8/yjAHRQwKRoA6YZqlfjXWmVzoVSMw==",
+            "version": "5.5.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.2.tgz",
+            "integrity": "sha512-NcRtPEOsPFFWjobJEtfihkLCZCXZt/os3zf8nTxjVH3RvTSxjrCamJpbExGvYOF+tFHc3pA65qpdwPbzjohhew==",
             "bin": {
                 "tsc": "bin/tsc",
                 "tsserver": "bin/tsserver"
             },
             "engines": {
-                "node": ">=4.2.0"
+                "node": ">=14.17"
             }
         },
         "node_modules/universalify": {
@@ -2760,11 +2748,6 @@
                         "make-error": "^1.1.1",
                         "yn": "3.1.1"
                     }
-                },
-                "typescript": {
-                    "version": "5.2.2",
-                    "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
-                    "integrity": "sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w=="
                 }
             }
         },
@@ -3724,9 +3707,9 @@
             "integrity": "sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA=="
         },
         "typescript": {
-            "version": "4.6.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.3.tgz",
-            "integrity": "sha512-yNIatDa5iaofVozS/uQJEl3JRWLKKGJKh6Yaiv0GLGSuhpFJe7P3SbHZ8/yjAHRQwKRoA6YZqlfjXWmVzoVSMw=="
+            "version": "5.5.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.2.tgz",
+            "integrity": "sha512-NcRtPEOsPFFWjobJEtfihkLCZCXZt/os3zf8nTxjVH3RvTSxjrCamJpbExGvYOF+tFHc3pA65qpdwPbzjohhew=="
         },
         "universalify": {
             "version": "2.0.0",
diff --git a/examples/simple_erc20/package.json b/examples/simple_erc20/package.json
index 12850d628c..8136defd44 100644
--- a/examples/simple_erc20/package.json
+++ b/examples/simple_erc20/package.json
@@ -10,6 +10,6 @@
     "devDependencies": {
         "@dfinity/agent": "0.11.1",
         "ts-node": "10.7.0",
-        "typescript": "4.6.3"
+        "typescript": "^5.2.2"
     }
 }
diff --git a/examples/simple_erc20/test/tests.ts b/examples/simple_erc20/test/tests.ts
index 0aa19a3541..5d27f017dd 100644
--- a/examples/simple_erc20/test/tests.ts
+++ b/examples/simple_erc20/test/tests.ts
@@ -1,9 +1,8 @@
 import { ActorSubclass } from '@dfinity/agent';
 import { Test } from 'azle/test';
+import { Service } from 'service';
 
-import { _SERVICE } from './dfx_generated/simple_erc20/simple_erc20.did';
-
-export function getTests(simpleErc20Canister: ActorSubclass<_SERVICE>): Test[] {
+export function getTests(simpleErc20Canister: ActorSubclass<Service>): Test[] {
     return [
         {
             name: 'empty name',
diff --git a/examples/simple_erc20/test/types.d.ts b/examples/simple_erc20/test/types.d.ts
new file mode 100644
index 0000000000..6900780140
--- /dev/null
+++ b/examples/simple_erc20/test/types.d.ts
@@ -0,0 +1,5 @@
+import { _SERVICE } from './dfx_generated/simple_erc20/simple_erc20.did';
+
+declare module 'service' {
+    export type Service = _SERVICE;
+}
diff --git a/examples/simple_erc20/tsconfig.json b/examples/simple_erc20/tsconfig.json
index 2638f0d8bc..a13ea7385a 100644
--- a/examples/simple_erc20/tsconfig.json
+++ b/examples/simple_erc20/tsconfig.json
@@ -4,6 +4,9 @@
         "target": "ES2020",
         "moduleResolution": "node",
         "allowJs": true,
-        "outDir": "HACK_BECAUSE_OF_ALLOW_JS"
+        "outDir": "HACK_BECAUSE_OF_ALLOW_JS",
+        "paths": {
+            "service": ["./test/types.d.ts"]
+        }
     }
 }
diff --git a/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/package-lock.json b/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/package-lock.json
index b6299c396c..d679f3b47f 100644
--- a/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/package-lock.json
+++ b/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/package-lock.json
@@ -5,16 +5,18 @@
     "packages": {
         "": {
             "dependencies": {
-                "azle": "0.22.0",
-                "simple_erc20_end_to_end_test_canister_syntax": "file:../../../../../examples/simple_erc20"
+                "azle": "0.22.0"
             },
             "devDependencies": {
                 "@dfinity/agent": "0.11.1",
+                "simple_erc20_end_to_end_test_canister_syntax": "file:../../../../../examples/simple_erc20",
                 "ts-node": "10.7.0",
-                "typescript": "4.6.3"
+                "typescript": "^5.2.2"
             }
         },
         "../../../../../examples/simple_erc20": {
+            "name": "simple_erc20_end_to_end_test_canister_syntax",
+            "dev": true,
             "dependencies": {
                 "azle": "0.22.0"
             },
@@ -963,18 +965,6 @@
                 }
             }
         },
-        "node_modules/azle/node_modules/typescript": {
-            "version": "5.2.2",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
-            "integrity": "sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w==",
-            "bin": {
-                "tsc": "bin/tsc",
-                "tsserver": "bin/tsserver"
-            },
-            "engines": {
-                "node": ">=14.17"
-            }
-        },
         "node_modules/base-x": {
             "version": "4.0.0",
             "resolved": "https://registry.npmjs.org/base-x/-/base-x-4.0.0.tgz",
@@ -2156,15 +2146,15 @@
             "integrity": "sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA=="
         },
         "node_modules/typescript": {
-            "version": "4.6.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.3.tgz",
-            "integrity": "sha512-yNIatDa5iaofVozS/uQJEl3JRWLKKGJKh6Yaiv0GLGSuhpFJe7P3SbHZ8/yjAHRQwKRoA6YZqlfjXWmVzoVSMw==",
+            "version": "5.5.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.2.tgz",
+            "integrity": "sha512-NcRtPEOsPFFWjobJEtfihkLCZCXZt/os3zf8nTxjVH3RvTSxjrCamJpbExGvYOF+tFHc3pA65qpdwPbzjohhew==",
             "bin": {
                 "tsc": "bin/tsc",
                 "tsserver": "bin/tsserver"
             },
             "engines": {
-                "node": ">=4.2.0"
+                "node": ">=14.17"
             }
         },
         "node_modules/universalify": {
@@ -2774,11 +2764,6 @@
                         "make-error": "^1.1.1",
                         "yn": "3.1.1"
                     }
-                },
-                "typescript": {
-                    "version": "5.2.2",
-                    "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
-                    "integrity": "sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w=="
                 }
             }
         },
@@ -3747,9 +3732,9 @@
             "integrity": "sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA=="
         },
         "typescript": {
-            "version": "4.6.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.3.tgz",
-            "integrity": "sha512-yNIatDa5iaofVozS/uQJEl3JRWLKKGJKh6Yaiv0GLGSuhpFJe7P3SbHZ8/yjAHRQwKRoA6YZqlfjXWmVzoVSMw=="
+            "version": "5.5.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.2.tgz",
+            "integrity": "sha512-NcRtPEOsPFFWjobJEtfihkLCZCXZt/os3zf8nTxjVH3RvTSxjrCamJpbExGvYOF+tFHc3pA65qpdwPbzjohhew=="
         },
         "universalify": {
             "version": "2.0.0",
diff --git a/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/package.json b/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/package.json
index 2eead2c20a..ed78fa20ff 100644
--- a/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/package.json
+++ b/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/package.json
@@ -10,6 +10,6 @@
         "@dfinity/agent": "0.11.1",
         "simple_erc20_end_to_end_test_canister_syntax": "file:../../../../../examples/simple_erc20",
         "ts-node": "10.7.0",
-        "typescript": "4.6.3"
+        "typescript": "^5.2.2"
     }
 }
diff --git a/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/tsconfig.json b/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/tsconfig.json
index 9599134d91..30f304df17 100644
--- a/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/tsconfig.json
+++ b/tests/end_to_end/candid_rpc/class_syntax/simple_erc20/tsconfig.json
@@ -5,6 +5,9 @@
         "moduleResolution": "node",
         "allowJs": true,
         "outDir": "HACK_BECAUSE_OF_ALLOW_JS",
-        "experimentalDecorators": true
+        "experimentalDecorators": true,
+        "paths": {
+            "service": ["../../../../types/service.d.ts"]
+        }
     }
 }
diff --git a/tests/types/service.d.ts b/tests/types/service.d.ts
new file mode 100644
index 0000000000..22f71f0f8f
--- /dev/null
+++ b/tests/types/service.d.ts
@@ -0,0 +1,3 @@
+declare module 'service' {
+    export type Service = any;
+}