diff --git a/.pnp.cjs b/.pnp.cjs
index c54184d70b0..7c02b29b0d2 100644
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -5729,7 +5729,7 @@ const RAW_RUNTIME_STATE =
         "packageLocation": "./packages/sources/data-engine/",\
         "packageDependencies": [\
           ["@chainlink/data-engine-adapter", "workspace:packages/sources/data-engine"],\
-          ["@chainlink/data-streams-sdk", "virtual:29c8fa29f35f020f9160a35554f7b84949a383888c5d188e62624b9badf4ce684909c85071a7f24bdb3e6ab54384c111baed4ccde8d5ece49ebcf3df89864817#npm:1.2.0"],\
+          ["@chainlink/data-streams-sdk", "virtual:29c8fa29f35f020f9160a35554f7b84949a383888c5d188e62624b9badf4ce684909c85071a7f24bdb3e6ab54384c111baed4ccde8d5ece49ebcf3df89864817#npm:1.2.1"],\
           ["@chainlink/external-adapter-framework", "npm:2.14.2"],\
           ["@sinonjs/fake-timers", "npm:9.1.2"],\
           ["@types/jest", "npm:29.5.14"],\
@@ -5744,17 +5744,17 @@ const RAW_RUNTIME_STATE =
       }]\
     ]],\
     ["@chainlink/data-streams-sdk", [\
-      ["npm:1.2.0", {\
-        "packageLocation": "./.yarn/cache/@chainlink-data-streams-sdk-npm-1.2.0-dfeb351ad4-6ee4c81187.zip/node_modules/@chainlink/data-streams-sdk/",\
+      ["npm:1.2.1", {\
+        "packageLocation": "./.yarn/cache/@chainlink-data-streams-sdk-npm-1.2.1-ddccf3fbbb-1d369f246f.zip/node_modules/@chainlink/data-streams-sdk/",\
         "packageDependencies": [\
-          ["@chainlink/data-streams-sdk", "npm:1.2.0"]\
+          ["@chainlink/data-streams-sdk", "npm:1.2.1"]\
         ],\
         "linkType": "SOFT"\
       }],\
-      ["virtual:29c8fa29f35f020f9160a35554f7b84949a383888c5d188e62624b9badf4ce684909c85071a7f24bdb3e6ab54384c111baed4ccde8d5ece49ebcf3df89864817#npm:1.2.0", {\
-        "packageLocation": "./.yarn/__virtual__/@chainlink-data-streams-sdk-virtual-df3bfd0507/0/cache/@chainlink-data-streams-sdk-npm-1.2.0-dfeb351ad4-6ee4c81187.zip/node_modules/@chainlink/data-streams-sdk/",\
+      ["virtual:29c8fa29f35f020f9160a35554f7b84949a383888c5d188e62624b9badf4ce684909c85071a7f24bdb3e6ab54384c111baed4ccde8d5ece49ebcf3df89864817#npm:1.2.1", {\
+        "packageLocation": "./.yarn/__virtual__/@chainlink-data-streams-sdk-virtual-e81532b663/0/cache/@chainlink-data-streams-sdk-npm-1.2.1-ddccf3fbbb-1d369f246f.zip/node_modules/@chainlink/data-streams-sdk/",\
         "packageDependencies": [\
-          ["@chainlink/data-streams-sdk", "virtual:29c8fa29f35f020f9160a35554f7b84949a383888c5d188e62624b9badf4ce684909c85071a7f24bdb3e6ab54384c111baed4ccde8d5ece49ebcf3df89864817#npm:1.2.0"],\
+          ["@chainlink/data-streams-sdk", "virtual:29c8fa29f35f020f9160a35554f7b84949a383888c5d188e62624b9badf4ce684909c85071a7f24bdb3e6ab54384c111baed4ccde8d5ece49ebcf3df89864817#npm:1.2.1"],\
           ["@types/dotenv", null],\
           ["dotenv", null],\
           ["ethers", "npm:6.15.0"],\
diff --git a/.yarn/cache/@chainlink-data-streams-sdk-npm-1.2.0-dfeb351ad4-6ee4c81187.zip b/.yarn/cache/@chainlink-data-streams-sdk-npm-1.2.1-ddccf3fbbb-1d369f246f.zip
similarity index 87%
rename from .yarn/cache/@chainlink-data-streams-sdk-npm-1.2.0-dfeb351ad4-6ee4c81187.zip
rename to .yarn/cache/@chainlink-data-streams-sdk-npm-1.2.1-ddccf3fbbb-1d369f246f.zip
index d09127234e8..df2c8dd4356 100644
Binary files a/.yarn/cache/@chainlink-data-streams-sdk-npm-1.2.0-dfeb351ad4-6ee4c81187.zip and b/.yarn/cache/@chainlink-data-streams-sdk-npm-1.2.1-ddccf3fbbb-1d369f246f.zip differ
diff --git a/packages/sources/data-engine/package.json b/packages/sources/data-engine/package.json
index 3fd94de66da..28e3f3360c7 100644
--- a/packages/sources/data-engine/package.json
+++ b/packages/sources/data-engine/package.json
@@ -36,7 +36,7 @@
     "typescript": "5.8.3"
   },
   "dependencies": {
-    "@chainlink/data-streams-sdk": "1.2.0",
+    "@chainlink/data-streams-sdk": "1.2.1",
     "@chainlink/external-adapter-framework": "2.14.2",
     "decimal.js": "^10.5.0",
     "tslib": "2.4.1"
diff --git a/yarn.lock b/yarn.lock
index f2f84c693e5..67e7948f71f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3126,7 +3126,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@chainlink/data-engine-adapter@workspace:packages/sources/data-engine"
   dependencies:
-    "@chainlink/data-streams-sdk": "npm:1.2.0"
+    "@chainlink/data-streams-sdk": "npm:1.2.1"
     "@chainlink/external-adapter-framework": "npm:2.14.2"
     "@sinonjs/fake-timers": "npm:9.1.2"
     "@types/jest": "npm:^29.5.14"
@@ -3139,9 +3139,9 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@chainlink/data-streams-sdk@npm:1.2.0":
-  version: 1.2.0
-  resolution: "@chainlink/data-streams-sdk@npm:1.2.0"
+"@chainlink/data-streams-sdk@npm:1.2.1":
+  version: 1.2.1
+  resolution: "@chainlink/data-streams-sdk@npm:1.2.1"
   dependencies:
     ethers: "npm:^6.15.0"
     ws: "npm:^8.18.3"
@@ -3150,7 +3150,7 @@ __metadata:
   peerDependenciesMeta:
     dotenv:
       optional: true
-  checksum: 10/6ee4c811874f97cce43cd77d9511a67163b08216313e89b7546a85bb51e63a25915eae1cc771224769a39c300de42bb4fa88726913d830ef0f2ec70a2d7f2aec
+  checksum: 10/1d369f246f4f4e375d66a7cccd147b01dd88b08ee7739fce560185d5c6b8885f5bbdaedf59973aad3db8f8963194295953012bc7150ebc2755e8b08d8425c745
   languageName: node
   linkType: hard