diff --git a/package.json b/package.json
index 8038b09..2f84311 100644
--- a/package.json
+++ b/package.json
@@ -9,13 +9,13 @@
     "lint": "next lint"
   },
   "dependencies": {
-    "@cashscript/utils": "^0.12.0",
+    "@cashscript/utils": "^0.13.0-next.2",
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.0",
     "@monaco-editor/react": "^3.6.2",
     "bootstrap": "^5.3.7",
-    "cashc": "^0.12.0",
-    "cashscript": "^0.12.0",
+    "cashc": "^0.13.0-next.2",
+    "cashscript": "^0.13.0-next.2",
     "next": "^15.5.4",
     "react": "18.2.0",
     "react-bootstrap": "^2.10.10",
diff --git a/src/components/Contracts.tsx b/src/components/Contracts.tsx
index c5bc95b..4a5d9e5 100644
--- a/src/components/Contracts.tsx
+++ b/src/components/Contracts.tsx
@@ -53,7 +53,7 @@ const Contracts: React.FC<Props> = ({ provider, contracts, setContracts, updateU
           </Card.Header>
           <Card.Body>
             <div style={{ margin: '5px', width: '100%' }}>
-              <strong>Contract type:</strong>
+              <strong>Contract type: </strong>
               <span>{contractInfo.contract.addressType}</span><br/>
               <strong>Contract address</strong>
               <CopyText>{contractInfo.contract.address}</CopyText>
@@ -108,7 +108,7 @@ const Contracts: React.FC<Props> = ({ provider, contracts, setContracts, updateU
                 <p>{contractInfo.utxos?.reduce((acc, utxo) => acc + utxo.satoshis, 0n).toString()} satoshis</p>
               }
               <strong>Contract size</strong>
-              <p>{contractInfo.contract.bytesize} bytes (max 1650)</p>
+              <p>{contractInfo.contract.bytesize} bytes (max 10,000)</p>
             </div>
           </Card.Body>
         </Card>
diff --git a/src/exampleContracts/examples.ts b/src/exampleContracts/examples.ts
index c7dadf2..9744fec 100644
--- a/src/exampleContracts/examples.ts
+++ b/src/exampleContracts/examples.ts
@@ -1,4 +1,4 @@
-export const exampleTimeoutContract = `pragma cashscript ~0.12.0;
+export const exampleTimeoutContract = `pragma cashscript ~0.13.0;
 
 // see https://cashscript.org/docs/basics/getting-started#writing-your-first-contract
 
@@ -16,7 +16,7 @@ contract TransferWithTimeout(pubkey sender, pubkey recipient, int timeout) {
 }
 `
 
-export const exampleEscrowContract = `pragma cashscript ~0.12.0;
+export const exampleEscrowContract = `pragma cashscript ~0.13.0;
 
 // see https://cashscript.org/docs/guides/covenants#restricting-p2pkh-recipients
     
@@ -40,7 +40,7 @@ contract Escrow(bytes20 arbiter, bytes20 buyer, bytes20 seller) {
 }
 `
 
-export const exampleStramingMecenasContract = `pragma cashscript ~0.12.0;
+export const exampleStramingMecenasContract = `pragma cashscript ~0.13.0;
 
 // see https://cashscript.org/docs/guides/covenants#keeping-local-state-in-nfts
     
@@ -100,7 +100,7 @@ contract StreamingMecenas(
 }
 `
 
-export const exampleDexContract = `pragma cashscript ~0.12.0;
+export const exampleDexContract = `pragma cashscript ~0.13.0;
 
 // see https://cashscript.org/docs/language/examples#amm-dex
 
diff --git a/yarn.lock b/yarn.lock
index 1311e9b..bdea660 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -70,10 +70,10 @@
   resolved "https://registry.yarnpkg.com/@bitauth/libauth/-/libauth-3.1.0-next.8.tgz#d130e5db6c3c8b24731c8d04c4091be07f48b0ee"
   integrity sha512-Pm+Ju+YP3JeBLLTiVrBnia2wwE4G17r4XqpvPRMcklElJTe8J6x3JgKRg1by0Xm3ZY6UFxACkEAoSA+x419/zA==
 
-"@cashscript/utils@^0.12.0":
-  version "0.12.0"
-  resolved "https://registry.yarnpkg.com/@cashscript/utils/-/utils-0.12.0.tgz#d4e96428ecb09792fb87970f4675214d7e54f409"
-  integrity sha512-25sJQuEUBeZ3BwCRJ3bruqsyP/9P1VLy9gnqObB/Uz2rzW9OAmDQ5gDsx9ABywazoXmq5/mQ+gQBwlqt9qpgmA==
+"@cashscript/utils@^0.13.0-next.2":
+  version "0.13.0-next.2"
+  resolved "https://registry.yarnpkg.com/@cashscript/utils/-/utils-0.13.0-next.2.tgz#35ada1d262f77b2a0814f8ca2f5556345a8a46fc"
+  integrity sha512-0eRd/cksfm86gnXMSN2ciY3dTa4f3jsjRdEC6JKyF+HnlDjF7wsFpIOCku4Af5GwAsA0xrxWEf1tDrOg0Edsqw==
   dependencies:
     "@bitauth/libauth" "^3.1.0-next.8"
 
@@ -1187,27 +1187,27 @@ caniuse-lite@^1.0.30001579:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001625.tgz#ead1b155ea691d6a87938754d3cb119c24465b03"
   integrity sha512-4KE9N2gcRH+HQhpeiRZXd+1niLB/XNLAhSy4z7fI8EzcbcPoAqjNInxVHTiTwWfTIV4w096XG8OtCOCQQKPv3w==
 
-cashc@^0.12.0:
-  version "0.12.0"
-  resolved "https://registry.yarnpkg.com/cashc/-/cashc-0.12.0.tgz#1e0674d569c5ae4119226032b792b226cf39457c"
-  integrity sha512-Cns6Xi+sRbURn7j8OwTAsVOp16BgUN3EmPNXMAj8DWhyofhJSPzkxtvynvKH10N1yDQBU8/Y9X/pz7JRA90UIg==
+cashc@^0.13.0-next.2:
+  version "0.13.0-next.2"
+  resolved "https://registry.yarnpkg.com/cashc/-/cashc-0.13.0-next.2.tgz#95d81c9dc49d6ee6279491a2d0be38ce381bbaa8"
+  integrity sha512-A6pxsPAxCNXoRKH9+p9jsEYeYDzilHe4u17dtzaBeTN0GkLHwH6VjpDMezDe94JdtksdMiiQKa1i+n6u/ogVrw==
   dependencies:
     "@bitauth/libauth" "^3.1.0-next.8"
-    "@cashscript/utils" "^0.12.0"
+    "@cashscript/utils" "^0.13.0-next.2"
     antlr4 "^4.13.2"
     commander "^14.0.0"
     semver "^7.7.2"
 
-cashscript@^0.12.0:
-  version "0.12.0"
-  resolved "https://registry.yarnpkg.com/cashscript/-/cashscript-0.12.0.tgz#66225524eb94fa657b4c68ac90e786d4348a848b"
-  integrity sha512-pdrBjdiBka8g/jVCtaku08R2xoFCMo2GG/pdVf/z+b95Yd0H1ioFSMlp9mx1xuxeYbvZx85ZGk643CAFm+Kzgg==
+cashscript@^0.13.0-next.2:
+  version "0.13.0-next.2"
+  resolved "https://registry.yarnpkg.com/cashscript/-/cashscript-0.13.0-next.2.tgz#61ce813b34673bb381f33d37289c3534736bf591"
+  integrity sha512-aO8tRBrIzltmiV/3xykdaGiPchr3x/ZgIqZY6JCyqYXjDRMTFZFMygewz4fO3w0xG43xFvazp/j8s4b11fECsQ==
   dependencies:
     "@bitauth/libauth" "^3.1.0-next.8"
-    "@cashscript/utils" "^0.12.0"
+    "@cashscript/utils" "^0.13.0-next.2"
     "@electrum-cash/network" "^4.1.3"
     "@mr-zwets/bchn-api-wrapper" "^1.0.1"
-    pako "^2.1.0"
+    fflate "^0.8.2"
     semver "^7.7.2"
 
 chalk@^2.0.0:
@@ -1987,6 +1987,11 @@ fastq@^1.6.0:
   dependencies:
     reusify "^1.0.4"
 
+fflate@^0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/fflate/-/fflate-0.8.2.tgz#fc8631f5347812ad6028bbe4a2308b2792aa1dea"
+  integrity sha512-cPJU47OaAoCbg0pBvzsgpTPhmhqI5eJjh/JIu8tPj5q+T7iLvW/JAYUqmE7KOB4R1ZyEhzBaIQpQpardBF5z8A==
+
 file-entry-cache@^8.0.0:
   version "8.0.0"
   resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-8.0.0.tgz#7787bddcf1131bffb92636c69457bbc0edd6d81f"
@@ -3003,11 +3008,6 @@ p-locate@^5.0.0:
   dependencies:
     p-limit "^3.0.2"
 
-pako@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/pako/-/pako-2.1.0.tgz#266cc37f98c7d883545d11335c00fbd4062c9a86"
-  integrity sha512-w+eufiZ1WuJYgPXbV/PO3NCMEc3xqylkKHzp8bxp1uW4qaSNQUkwmLLEc3kKsfz8lpV1F8Ht3U1Cm+9Srog2ug==
-
 parent-module@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/parent-module/-/parent-module-1.0.1.tgz#691d2709e78c79fae3a156622452d00762caaaa2"