diff --git a/packages/walletkit-core/src/api/whale.ts b/packages/walletkit-core/src/api/whale.ts
index 4e81abb..cae0b5b 100644
--- a/packages/walletkit-core/src/api/whale.ts
+++ b/packages/walletkit-core/src/api/whale.ts
@@ -37,7 +37,7 @@ export function newOceanOptions(
       };
     case EnvironmentNetwork.Changi:
       return {
-        url: url ?? "http://changi.ocean.jellyfishsdk.com",
+        url: url ?? "https://changi.ocean.jellyfishsdk.com",
         network: "changi",
         version: "v0",
       };
diff --git a/packages/walletkit-core/src/api/whale.unit.ts b/packages/walletkit-core/src/api/whale.unit.ts
index 45a27a7..73e20fb 100644
--- a/packages/walletkit-core/src/api/whale.unit.ts
+++ b/packages/walletkit-core/src/api/whale.unit.ts
@@ -55,7 +55,7 @@ describe("whale", () => {
   it("should match ocean options for changi", () => {
     const oceanOptions = newOceanOptions(EnvironmentNetwork.Changi);
     expect(oceanOptions).toMatchObject({
-      url: "http://changi.ocean.jellyfishsdk.com",
+      url: "https://changi.ocean.jellyfishsdk.com",
       network: "changi",
       version: "v0",
     });
@@ -104,7 +104,7 @@ describe("whale", () => {
 
   it("should match default ocean url for changi", () => {
     const defaultURL = getDefaultDefiChainURL(EnvironmentNetwork.Changi);
-    expect(defaultURL).toStrictEqual("http://changi.ocean.jellyfishsdk.com");
+    expect(defaultURL).toStrictEqual("https://changi.ocean.jellyfishsdk.com");
   });
 });
 
diff --git a/packages/walletkit-ui/src/contexts/WhaleContext.test.tsx b/packages/walletkit-ui/src/contexts/WhaleContext.test.tsx
index e776210..5277bf7 100644
--- a/packages/walletkit-ui/src/contexts/WhaleContext.test.tsx
+++ b/packages/walletkit-ui/src/contexts/WhaleContext.test.tsx
@@ -44,7 +44,7 @@ describe("Whale Context test", () => {
       name: EnvironmentNetwork.DevNet,
     },
     {
-      url: "http://changi.ocean.jellyfishsdk.com",
+      url: "https://changi.ocean.jellyfishsdk.com",
       network: "changi",
       name: EnvironmentNetwork.Changi,
     },
diff --git a/packages/walletkit-ui/src/contexts/__snapshots__/WhaleContext.test.tsx.snap b/packages/walletkit-ui/src/contexts/__snapshots__/WhaleContext.test.tsx.snap
index 14e362e..a3cd9a7 100644
--- a/packages/walletkit-ui/src/contexts/__snapshots__/WhaleContext.test.tsx.snap
+++ b/packages/walletkit-ui/src/contexts/__snapshots__/WhaleContext.test.tsx.snap
@@ -7,7 +7,7 @@ exports[`Whale Context test Whale Context test for Changi should match snapshot
     <div>
       <div>
         <span>
-          {"url":"http://changi.ocean.jellyfishsdk.com","timeout":60000,"version":"v0","network":"changi"}
+          {"url":"https://changi.ocean.jellyfishsdk.com","timeout":60000,"version":"v0","network":"changi"}
         </span>
       </div>
     </div>
@@ -15,7 +15,7 @@ exports[`Whale Context test Whale Context test for Changi should match snapshot
   "container": <div>
     <div>
       <span>
-        {"url":"http://changi.ocean.jellyfishsdk.com","timeout":60000,"version":"v0","network":"changi"}
+        {"url":"https://changi.ocean.jellyfishsdk.com","timeout":60000,"version":"v0","network":"changi"}
       </span>
     </div>
   </div>,