diff --git a/aqua-examples/price-oracle/client-peer/package-lock.json b/aqua-examples/price-oracle/client-peer/package-lock.json
index 38bfbd3..1057a19 100644
--- a/aqua-examples/price-oracle/client-peer/package-lock.json
+++ b/aqua-examples/price-oracle/client-peer/package-lock.json
@@ -9,14 +9,14 @@
       "version": "0.1.0",
       "license": "MIT",
       "dependencies": {
-        "@fluencelabs/aqua-lib": "^0.1.9",
-        "@fluencelabs/fluence": "^0.13.0",
-        "@fluencelabs/fluence-network-environment": "^1.0.10",
+        "@fluencelabs/aqua-lib": "0.1.14",
+        "@fluencelabs/fluence": "^0.14.2",
+        "@fluencelabs/fluence-network-environment": "1.0.10",
         "it-all": "^1.0.5"
       },
       "devDependencies": {
-        "@fluencelabs/aqua": "0.3.2-233",
-        "typescript": "^3.9.5"
+        "@fluencelabs/aqua": "^0.4.0-235",
+        "typescript": "^4.0.0"
       }
     },
     "node_modules/@chainsafe/libp2p-noise": {
@@ -51,9 +51,9 @@
       }
     },
     "node_modules/@fluencelabs/aqua": {
-      "version": "0.3.2-233",
-      "resolved": "https://registry.npmjs.org/@fluencelabs/aqua/-/aqua-0.3.2-233.tgz",
-      "integrity": "sha512-LxwNt/O2ijHA2bG7+qdmnFT//kpIVj7mACBp28LxRpb2kJYMcVDNb9VfyWDiDdoX10PAT96OpkiYvVJPs0mpEw==",
+      "version": "0.4.0-235",
+      "resolved": "https://registry.npmjs.org/@fluencelabs/aqua/-/aqua-0.4.0-235.tgz",
+      "integrity": "sha512-tbbHG3dhlwcSzlHMPoV4/MLW6JE00q3hiyznjLh+aW91ovBAXuWe5C1n9CKeRiJtYz3yIQCn2l3arI/PvzLx9Q==",
       "dev": true,
       "dependencies": {
         "@fluencelabs/fluence": "0.12.1"
@@ -96,17 +96,18 @@
       "version": "0.14.4",
       "resolved": "https://registry.npmjs.org/@fluencelabs/avm/-/avm-0.14.4.tgz",
       "integrity": "sha512-XyR+1H5k0CAc+mDHOkl81viX8XeW1Yqbw793xbsfUfju5bUb/hqk+gHv3q8lAFdbrCG5P45gdOT08a5RNODZaQ==",
+      "dev": true,
       "dependencies": {
         "base64-js": "1.5.1"
       }
     },
     "node_modules/@fluencelabs/fluence": {
-      "version": "0.13.0",
-      "resolved": "https://registry.npmjs.org/@fluencelabs/fluence/-/fluence-0.13.0.tgz",
-      "integrity": "sha512-Dqhr7CAYeAO8Z5jR+mbGu0cVZjkE06cM2L8n9bQWe4T4y2B83ZxUmrs/OTWlYnsLd1Sr2YdDlnyZeUvWLEEmrQ==",
+      "version": "0.14.2",
+      "resolved": "https://registry.npmjs.org/@fluencelabs/fluence/-/fluence-0.14.2.tgz",
+      "integrity": "sha512-Cf5Ii6dpVSSi839jB7H0Y9k07xncYdHiTNKp4LlPg6inXuy2OPb2E7qF5DXlMM9O1dBb/UJTa4jZlQDsgWriiQ==",
       "dependencies": {
         "@chainsafe/libp2p-noise": "4.0.0",
-        "@fluencelabs/avm": "0.14.4",
+        "@fluencelabs/avm": "0.15.4",
         "async": "3.2.0",
         "base64-js": "1.5.1",
         "bs58": "4.0.1",
@@ -120,6 +121,8 @@
         "loglevel": "1.7.0",
         "multiaddr": "10.0.0",
         "peer-id": "0.15.3",
+        "rxjs": "^7.3.0",
+        "ts-pattern": "^3.3.3",
         "uuid": "8.3.0"
       }
     },
@@ -128,6 +131,14 @@
       "resolved": "https://registry.npmjs.org/@fluencelabs/fluence-network-environment/-/fluence-network-environment-1.0.10.tgz",
       "integrity": "sha512-aaWZDDFIIasSTgdFdw1KEz+boZMSn7pXffUENZNLX4DrP11rC3AEX4c8GnIJQbWqGsouOFZOPna2DSG6o2rLNQ=="
     },
+    "node_modules/@fluencelabs/fluence/node_modules/@fluencelabs/avm": {
+      "version": "0.15.4",
+      "resolved": "https://registry.npmjs.org/@fluencelabs/avm/-/avm-0.15.4.tgz",
+      "integrity": "sha512-NLZDq83ocJ1Helm0D8kPMSSkjxH0y+Tujg0px773zjIShbh3jgiJOjAW1xCYgTt9K0LqepjP0bWX4/8nUZfr7g==",
+      "dependencies": {
+        "base64-js": "1.5.1"
+      }
+    },
     "node_modules/@motrix/nat-api": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/@motrix/nat-api/-/nat-api-0.3.2.tgz",
@@ -2277,6 +2288,14 @@
         "node": ">= 4"
       }
     },
+    "node_modules/rxjs": {
+      "version": "7.4.0",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-7.4.0.tgz",
+      "integrity": "sha512-7SQDi7xeTMCJpqViXh8gL/lebcwlp3d831F05+9B44A4B0WfsEwUQHR64gsH1kvJ+Ep/J9K2+n1hVl1CsGN23w==",
+      "dependencies": {
+        "tslib": "~2.1.0"
+      }
+    },
     "node_modules/safe-buffer": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
@@ -2452,6 +2471,16 @@
         "utf8-byte-length": "^1.0.1"
       }
     },
+    "node_modules/ts-pattern": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/ts-pattern/-/ts-pattern-3.3.3.tgz",
+      "integrity": "sha512-Z5EFi6g6wyX3uDFHqxF5W5c5h663oZg9O6aOiAT7fqNu0HPSfCxtHzrQ7SblTy738Mrg2Ezorky8H5aUOm8Pvg=="
+    },
+    "node_modules/tslib": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
+      "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A=="
+    },
     "node_modules/tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
@@ -2469,9 +2498,9 @@
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
     },
     "node_modules/typescript": {
-      "version": "3.9.10",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.10.tgz",
-      "integrity": "sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==",
+      "version": "4.4.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.4.tgz",
+      "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -2654,9 +2683,9 @@
       }
     },
     "@fluencelabs/aqua": {
-      "version": "0.3.2-233",
-      "resolved": "https://registry.npmjs.org/@fluencelabs/aqua/-/aqua-0.3.2-233.tgz",
-      "integrity": "sha512-LxwNt/O2ijHA2bG7+qdmnFT//kpIVj7mACBp28LxRpb2kJYMcVDNb9VfyWDiDdoX10PAT96OpkiYvVJPs0mpEw==",
+      "version": "0.4.0-235",
+      "resolved": "https://registry.npmjs.org/@fluencelabs/aqua/-/aqua-0.4.0-235.tgz",
+      "integrity": "sha512-tbbHG3dhlwcSzlHMPoV4/MLW6JE00q3hiyznjLh+aW91ovBAXuWe5C1n9CKeRiJtYz3yIQCn2l3arI/PvzLx9Q==",
       "dev": true,
       "requires": {
         "@fluencelabs/fluence": "0.12.1"
@@ -2697,17 +2726,18 @@
       "version": "0.14.4",
       "resolved": "https://registry.npmjs.org/@fluencelabs/avm/-/avm-0.14.4.tgz",
       "integrity": "sha512-XyR+1H5k0CAc+mDHOkl81viX8XeW1Yqbw793xbsfUfju5bUb/hqk+gHv3q8lAFdbrCG5P45gdOT08a5RNODZaQ==",
+      "dev": true,
       "requires": {
         "base64-js": "1.5.1"
       }
     },
     "@fluencelabs/fluence": {
-      "version": "0.13.0",
-      "resolved": "https://registry.npmjs.org/@fluencelabs/fluence/-/fluence-0.13.0.tgz",
-      "integrity": "sha512-Dqhr7CAYeAO8Z5jR+mbGu0cVZjkE06cM2L8n9bQWe4T4y2B83ZxUmrs/OTWlYnsLd1Sr2YdDlnyZeUvWLEEmrQ==",
+      "version": "0.14.2",
+      "resolved": "https://registry.npmjs.org/@fluencelabs/fluence/-/fluence-0.14.2.tgz",
+      "integrity": "sha512-Cf5Ii6dpVSSi839jB7H0Y9k07xncYdHiTNKp4LlPg6inXuy2OPb2E7qF5DXlMM9O1dBb/UJTa4jZlQDsgWriiQ==",
       "requires": {
         "@chainsafe/libp2p-noise": "4.0.0",
-        "@fluencelabs/avm": "0.14.4",
+        "@fluencelabs/avm": "0.15.4",
         "async": "3.2.0",
         "base64-js": "1.5.1",
         "bs58": "4.0.1",
@@ -2721,7 +2751,19 @@
         "loglevel": "1.7.0",
         "multiaddr": "10.0.0",
         "peer-id": "0.15.3",
+        "rxjs": "^7.3.0",
+        "ts-pattern": "^3.3.3",
         "uuid": "8.3.0"
+      },
+      "dependencies": {
+        "@fluencelabs/avm": {
+          "version": "0.15.4",
+          "resolved": "https://registry.npmjs.org/@fluencelabs/avm/-/avm-0.15.4.tgz",
+          "integrity": "sha512-NLZDq83ocJ1Helm0D8kPMSSkjxH0y+Tujg0px773zjIShbh3jgiJOjAW1xCYgTt9K0LqepjP0bWX4/8nUZfr7g==",
+          "requires": {
+            "base64-js": "1.5.1"
+          }
+        }
       }
     },
     "@fluencelabs/fluence-network-environment": {
@@ -4496,6 +4538,14 @@
       "resolved": "https://registry.npmjs.org/retry/-/retry-0.13.1.tgz",
       "integrity": "sha512-XQBQ3I8W1Cge0Seh+6gjj03LbmRFWuoszgK9ooCpwYIrhhoO80pfq4cUkU5DkknwfOfFteRwlZ56PYOGYyFWdg=="
     },
+    "rxjs": {
+      "version": "7.4.0",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-7.4.0.tgz",
+      "integrity": "sha512-7SQDi7xeTMCJpqViXh8gL/lebcwlp3d831F05+9B44A4B0WfsEwUQHR64gsH1kvJ+Ep/J9K2+n1hVl1CsGN23w==",
+      "requires": {
+        "tslib": "~2.1.0"
+      }
+    },
     "safe-buffer": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
@@ -4632,6 +4682,16 @@
         "utf8-byte-length": "^1.0.1"
       }
     },
+    "ts-pattern": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/ts-pattern/-/ts-pattern-3.3.3.tgz",
+      "integrity": "sha512-Z5EFi6g6wyX3uDFHqxF5W5c5h663oZg9O6aOiAT7fqNu0HPSfCxtHzrQ7SblTy738Mrg2Ezorky8H5aUOm8Pvg=="
+    },
+    "tslib": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
+      "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A=="
+    },
     "tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
@@ -4646,9 +4706,9 @@
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
     },
     "typescript": {
-      "version": "3.9.10",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.10.tgz",
-      "integrity": "sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==",
+      "version": "4.4.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.4.tgz",
+      "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==",
       "dev": true
     },
     "uint8arrays": {
diff --git a/aqua-examples/price-oracle/client-peer/package.json b/aqua-examples/price-oracle/client-peer/package.json
index 18789da..ae63726 100644
--- a/aqua-examples/price-oracle/client-peer/package.json
+++ b/aqua-examples/price-oracle/client-peer/package.json
@@ -14,7 +14,7 @@
   ],
   "dependencies": {
     "@fluencelabs/aqua-lib": "0.1.14",
-    "@fluencelabs/fluence": "0.13.0",
+    "@fluencelabs/fluence": "^0.14.2",
     "@fluencelabs/fluence-network-environment": "1.0.10",
     "it-all": "^1.0.5"
   },
@@ -43,7 +43,7 @@
   },
   "homepage": "git+https://github.com/fluencelabs/examples/aqua-examples/price-oracle#readme",
   "devDependencies": {
-    "@fluencelabs/aqua": "0.3.2-233",
-    "typescript": "^3.9.5"
+    "@fluencelabs/aqua": "^0.4.0-235",
+    "typescript": "^4.0.0"
   }
 }