diff --git a/packages/fetch-impl/package.json b/packages/fetch-impl/package.json
index 75d0979971c..d3ab972716d 100644
--- a/packages/fetch-impl/package.json
+++ b/packages/fetch-impl/package.json
@@ -7,7 +7,7 @@
     },
     "devDependencies": {
         "tinybench": "^3.0.6",
-        "undici": "^6.21.0"
+        "undici": "^7.0.0"
     },
     "engines": {
         "node": ">=20.18.0"
diff --git a/packages/rpc-transport-http/package.json b/packages/rpc-transport-http/package.json
index 64b02f8f2a6..1856e282105 100644
--- a/packages/rpc-transport-http/package.json
+++ b/packages/rpc-transport-http/package.json
@@ -75,11 +75,11 @@
         "@solana/errors": "workspace:*",
         "@solana/rpc-spec": "workspace:*",
         "@solana/rpc-spec-types": "workspace:*",
-        "undici-types": "^6.21.0"
+        "undici-types": "^7.0.0"
     },
     "devDependencies": {
         "tinybench": "^3.0.6",
-        "undici": "^6.21.0",
+        "undici": "^7.0.0",
         "zx": "^8.2.4"
     },
     "peerDependencies": {
diff --git a/packages/test-config/package.json b/packages/test-config/package.json
index ade0764c996..8e770527f48 100644
--- a/packages/test-config/package.json
+++ b/packages/test-config/package.json
@@ -8,12 +8,12 @@
     ],
     "peerDependencies": {
         "jest-dev-server": "^10.0.0",
-        "undici": "^6.21.0",
+        "undici": "^7.0.0",
         "whatwg-fetch": "^3.6.20"
     },
     "devDependencies": {
         "@jest/types": "^29.6.3",
-        "undici": "^6.21.0",
+        "undici": "^7.0.0",
         "whatwg-fetch": "^3.6.20"
     },
     "engines": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d7a4d61e8eb..74a9474bad8 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -510,8 +510,8 @@ importers:
         specifier: ^3.0.6
         version: 3.0.6
       undici:
-        specifier: ^6.21.0
-        version: 6.21.0
+        specifier: ^7.0.0
+        version: 7.0.0
 
   packages/functional:
     dependencies:
@@ -1018,15 +1018,15 @@ importers:
         specifier: '>=5'
         version: 5.5.2
       undici-types:
-        specifier: ^6.21.0
-        version: 6.21.0
+        specifier: ^7.0.0
+        version: 7.0.0
     devDependencies:
       tinybench:
         specifier: ^3.0.6
         version: 3.0.6
       undici:
-        specifier: ^6.21.0
-        version: 6.21.0
+        specifier: ^7.0.0
+        version: 7.0.0
       zx:
         specifier: ^8.2.4
         version: 8.2.4
@@ -1139,8 +1139,8 @@ importers:
         specifier: ^29.6.3
         version: 29.6.3
       undici:
-        specifier: ^6.21.0
-        version: 6.21.0
+        specifier: ^7.0.0
+        version: 7.0.0
       whatwg-fetch:
         specifier: ^3.6.20
         version: 3.6.20
@@ -6557,12 +6557,12 @@ packages:
   undici-types@6.20.0:
     resolution: {integrity: sha512-Ny6QZ2Nju20vw1SRHe3d9jVu6gJ+4e3+MMpqu7pqE5HT6WsTSlce++GQmK5UXS8mzV8DSYHrQH+Xrf2jVcuKNg==}
 
-  undici-types@6.21.0:
-    resolution: {integrity: sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==}
+  undici-types@7.0.0:
+    resolution: {integrity: sha512-KGeRdWTIBFYWOPvnssHfsmYsWSdcLWOcdvchHZ5tqdhGWuKg3wBXc5o2eTe/KORc3Yinrrddt8+zYBdSr46Pkw==}
 
-  undici@6.21.0:
-    resolution: {integrity: sha512-BUgJXc752Kou3oOIuU1i+yZZypyZRqNPW0vqoMPl8VaoalSfeR0D8/t4iAS3yirs79SSMTxTag+ZC86uswv+Cw==}
-    engines: {node: '>=18.17'}
+  undici@7.0.0:
+    resolution: {integrity: sha512-c4xi3kWnQJrb7h2q8aJYKvUzmz7boCgz1cUCC6OwdeM5Tr2P0hDuthr2iut4ggqsz+Cnh20U/LoTzbKIdDS/Nw==}
+    engines: {node: '>=20.18.1'}
 
   unicode-canonical-property-names-ecmascript@2.0.0:
     resolution: {integrity: sha512-yY5PpDlfVIU5+y/BSCxAJRBIS1Zc2dDG3Ujq+sR0U+JjUevW2JhocOF+soROYDSaAezOzOKuyyixhD6mBknSmQ==}
@@ -13038,9 +13038,9 @@ snapshots:
 
   undici-types@6.20.0: {}
 
-  undici-types@6.21.0: {}
+  undici-types@7.0.0: {}
 
-  undici@6.21.0: {}
+  undici@7.0.0: {}
 
   unicode-canonical-property-names-ecmascript@2.0.0:
     optional: true