diff --git a/package-lock.json b/package-lock.json
index 4342b00c..800907fa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2261,9 +2261,9 @@
       }
     },
     "node_modules/@tanstack/query-core": {
-      "version": "5.62.7",
-      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.62.7.tgz",
-      "integrity": "sha512-fgpfmwatsrUal6V+8EC2cxZIQVl9xvL7qYa03gsdsCy985UTUlS4N+/3hCzwR0PclYDqisca2AqR1BVgJGpUDA==",
+      "version": "5.66.0",
+      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.66.0.tgz",
+      "integrity": "sha512-J+JeBtthiKxrpzUu7rfIPDzhscXF2p5zE/hVdrqkACBP8Yu0M96mwJ5m/8cPPYQE9aRNvXztXHlNwIh4FEeMZw==",
       "license": "MIT",
       "funding": {
         "type": "github",
@@ -2271,9 +2271,9 @@
       }
     },
     "node_modules/@tanstack/query-devtools": {
-      "version": "5.61.4",
-      "resolved": "https://registry.npmjs.org/@tanstack/query-devtools/-/query-devtools-5.61.4.tgz",
-      "integrity": "sha512-21Tw+u8E3IJJj4A/Bct4H0uBaDTEu7zBrR79FeSyY+mS2gx5/m316oDtJiKkILc819VSTYt+sFzODoJNcpPqZQ==",
+      "version": "5.65.0",
+      "resolved": "https://registry.npmjs.org/@tanstack/query-devtools/-/query-devtools-5.65.0.tgz",
+      "integrity": "sha512-g5y7zc07U9D3esMdqUfTEVu9kMHoIaVBsD0+M3LPdAdD710RpTcLiNvJY1JkYXqkq9+NV+CQoemVNpQPBXVsJg==",
       "license": "MIT",
       "funding": {
         "type": "github",
@@ -2281,12 +2281,12 @@
       }
     },
     "node_modules/@tanstack/react-query": {
-      "version": "5.62.7",
-      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.62.7.tgz",
-      "integrity": "sha512-+xCtP4UAFDTlRTYyEjLx0sRtWyr5GIk7TZjZwBu4YaNahi3Rt2oMyRqfpfVrtwsqY2sayP4iXVCwmC+ZqqFmuw==",
+      "version": "5.66.0",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.66.0.tgz",
+      "integrity": "sha512-z3sYixFQJe8hndFnXgWu7C79ctL+pI0KAelYyW+khaNJ1m22lWrhJU2QrsTcRKMuVPtoZvfBYrTStIdKo+x0Xw==",
       "license": "MIT",
       "dependencies": {
-        "@tanstack/query-core": "5.62.7"
+        "@tanstack/query-core": "5.66.0"
       },
       "funding": {
         "type": "github",
@@ -2297,19 +2297,19 @@
       }
     },
     "node_modules/@tanstack/react-query-devtools": {
-      "version": "5.62.7",
-      "resolved": "https://registry.npmjs.org/@tanstack/react-query-devtools/-/react-query-devtools-5.62.7.tgz",
-      "integrity": "sha512-wxXsdTZJRs//hMtJMU5aNlUaTclRFPqLvDNeWbRj8YpGD3aoo4zyu53W55W2DY16+ycg3fti21uCW4N9oyj91w==",
+      "version": "5.66.0",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-query-devtools/-/react-query-devtools-5.66.0.tgz",
+      "integrity": "sha512-uB57wA2YZaQ2fPcFW0E9O1zAGDGSbRKRx84uMk/86VyU9jWVxvJ3Uzp+zNm+nZJYsuekCIo2opTdgNuvM3cKgA==",
       "license": "MIT",
       "dependencies": {
-        "@tanstack/query-devtools": "5.61.4"
+        "@tanstack/query-devtools": "5.65.0"
       },
       "funding": {
         "type": "github",
         "url": "https://github.com/sponsors/tannerlinsley"
       },
       "peerDependencies": {
-        "@tanstack/react-query": "^5.62.7",
+        "@tanstack/react-query": "^5.66.0",
         "react": "^18 || ^19"
       }
     },
@@ -8986,7 +8986,7 @@
         "@bufbuild/protoc-gen-es": "^2.2.1",
         "@connectrpc/connect": "^2.0.0",
         "@connectrpc/connect-web": "^2.0.0",
-        "@tanstack/react-query": "^5.62.7",
+        "@tanstack/react-query": "^5.66.0",
         "@testing-library/react": "^16.1.0",
         "@types/react": "^19.0.1",
         "@types/react-dom": "^19.0.2",
@@ -9036,8 +9036,8 @@
         "@connectrpc/connect-query": "^2.0.1",
         "@connectrpc/connect-web": "^2.0.0",
         "@connectrpc/protoc-gen-connect-query": "^2.0.1",
-        "@tanstack/react-query": "^5.62.7",
-        "@tanstack/react-query-devtools": "^5.62.7",
+        "@tanstack/react-query": "^5.66.0",
+        "@tanstack/react-query-devtools": "^5.66.0",
         "@testing-library/jest-dom": "^6.6.3",
         "@testing-library/react": "^16.1.0",
         "@types/react": "^19.0.1",
@@ -9065,7 +9065,7 @@
         "@bufbuild/protoc-gen-es": "^2.2.1",
         "@connectrpc/connect": "^2.0.0",
         "@connectrpc/connect-query": "^2.0.1",
-        "@tanstack/react-query": "^5.59.16",
+        "@tanstack/react-query": "^5.66.0",
         "typescript": "^5.6.3"
       },
       "engines": {
diff --git a/packages/connect-query/package.json b/packages/connect-query/package.json
index 0f789eaa..eb9c1dfb 100644
--- a/packages/connect-query/package.json
+++ b/packages/connect-query/package.json
@@ -40,7 +40,7 @@
     "@bufbuild/protoc-gen-es": "^2.2.1",
     "@connectrpc/connect": "^2.0.0",
     "@connectrpc/connect-web": "^2.0.0",
-    "@tanstack/react-query": "^5.62.7",
+    "@tanstack/react-query": "^5.66.0",
     "@testing-library/react": "^16.1.0",
     "@types/react": "^19.0.1",
     "@types/react-dom": "^19.0.2",
diff --git a/packages/examples/react/basic/package.json b/packages/examples/react/basic/package.json
index ba0ee4c2..7357bb4a 100644
--- a/packages/examples/react/basic/package.json
+++ b/packages/examples/react/basic/package.json
@@ -20,8 +20,8 @@
     "@connectrpc/connect-query": "^2.0.1",
     "@connectrpc/connect-web": "^2.0.0",
     "@connectrpc/protoc-gen-connect-query": "^2.0.1",
-    "@tanstack/react-query": "^5.62.7",
-    "@tanstack/react-query-devtools": "^5.62.7",
+    "@tanstack/react-query": "^5.66.0",
+    "@tanstack/react-query-devtools": "^5.66.0",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.1.0",
     "@types/react": "^19.0.1",
diff --git a/packages/protoc-gen-connect-query/package.json b/packages/protoc-gen-connect-query/package.json
index 785fa728..eb846d60 100644
--- a/packages/protoc-gen-connect-query/package.json
+++ b/packages/protoc-gen-connect-query/package.json
@@ -31,7 +31,7 @@
     "@bufbuild/protoc-gen-es": "^2.2.1",
     "@connectrpc/connect": "^2.0.0",
     "@connectrpc/connect-query": "^2.0.1",
-    "@tanstack/react-query": "^5.59.16",
+    "@tanstack/react-query": "^5.66.0",
     "typescript": "^5.6.3"
   },
   "dependencies": {