diff --git a/.changeset/dependencies-GH-1802.md b/.changeset/dependencies-GH-1802.md
new file mode 100644
index 0000000000..112a66f8bf
--- /dev/null
+++ b/.changeset/dependencies-GH-1802.md
@@ -0,0 +1,8 @@
+---
+"@sanity/embeddings-index-ui": patch
+"@sanity/language-filter": patch
+"@sanity/studio-secrets": patch
+"sanity-plugin-mux-input": patch
+---
+
+fix(deps): update dependency react-rx to v5
diff --git a/plugins/@sanity/embeddings-index-ui/package.json b/plugins/@sanity/embeddings-index-ui/package.json
index 26636669eb..dfa682c461 100644
--- a/plugins/@sanity/embeddings-index-ui/package.json
+++ b/plugins/@sanity/embeddings-index-ui/package.json
@@ -39,7 +39,7 @@
   "dependencies": {
     "@sanity/icons": "catalog:",
     "@sanity/ui": "catalog:",
-    "react-rx": "^4.2.5"
+    "react-rx": "^5.1.2"
   },
   "devDependencies": {
     "@sanity/tsconfig": "catalog:",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e0caeea632..8c6fab4d41 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -149,8 +149,8 @@ catalogs:
       specifier: ^3.6.0
       version: 3.6.1
     react-rx:
-      specifier: ^4.2.5
-      version: 4.2.5
+      specifier: ^5.1.2
+      version: 5.1.2
     rxjs:
       specifier: ^7.8.2
       version: 7.8.2
@@ -1110,8 +1110,8 @@ importers:
         specifier: 'catalog:'
         version: 4.0.7(react-dom@19.3.0)(react@19.3.0)(styled-components@6.5.3)
       react-rx:
-        specifier: ^4.2.5
-        version: 4.2.5(react@19.3.0)(rxjs@7.8.2)
+        specifier: ^5.1.2
+        version: 5.1.2(react@19.3.0)(rxjs@7.8.2)
       sanity:
         specifier: next
         version: 6.17.0-next.108(@babel/core@7.29.7)(@babel/runtime@7.29.7)(@noble/hashes@2.3.0)(@rolldown/plugin-babel@0.2.3)(@types/node@24.13.3)(@types/react-dom@19.3.0)(@types/react@19.3.0)(babel-plugin-react-compiler@1.0.0)(esbuild@0.28.1)(immer@11.1.17)(jiti@2.7.0)(oxc-transform-react@0.147.0)(oxfmt@0.63.0)(react-dom@19.3.0)(react@19.3.0)(rolldown@1.2.11)(styled-components@6.5.3)(supports-color@10.2.2)(tsx@4.23.12)(typescript@7.0.2)(vitest@4.1.11)
@@ -1328,7 +1328,7 @@ importers:
         version: 4.0.7(react-dom@19.3.0)(react@19.3.0)(styled-components@6.5.3)
       react-rx:
         specifier: 'catalog:'
-        version: 4.2.5(react@19.3.0)(rxjs@7.8.2)
+        version: 5.1.2(react@19.3.0)(rxjs@7.8.2)
       rxjs:
         specifier: 'catalog:'
         version: 7.8.2
@@ -1689,7 +1689,7 @@ importers:
         version: 4.0.7(react-dom@19.3.0)(react@19.3.0)(styled-components@6.5.3)
       react-rx:
         specifier: 'catalog:'
-        version: 4.2.5(react@19.3.0)(rxjs@7.8.2)
+        version: 5.1.2(react@19.3.0)(rxjs@7.8.2)
       rxjs:
         specifier: 'catalog:'
         version: 7.8.2
@@ -2798,7 +2798,7 @@ importers:
         version: 19.3.0
       react-rx:
         specifier: 'catalog:'
-        version: 4.2.5(react@19.3.0)(rxjs@7.8.2)
+        version: 5.1.2(react@19.3.0)(rxjs@7.8.2)
       rxjs:
         specifier: 'catalog:'
         version: 7.8.2
@@ -13130,11 +13130,12 @@ packages:
     peerDependencies:
       react: '>=18.0.0'
 
-  react-rx@4.2.5:
-    resolution: {integrity: sha512-n1kHm1W81p9FgBygKpw1pkqJAIp2xAJS5Jpbef89UgPxG6twsuQfj5TRnCeTkr5GiA36qgxkMjkmUjNWQT1tVg==}
+  react-rx@5.1.2:
+    resolution: {integrity: sha512-zpY8sQPjUjCq6EmLpr6t/wFQipKxmlPqymhv4IWyImAXP+Wmdflx/cLMXBO1+HLmdTCBuspcoVVIid1wsi9Mkw==}
+    engines: {node: '>=22.12'}
     peerDependencies:
-      react: ^18.3 || >=19.0.0-0
-      rxjs: ^7
+      react: ^19.2
+      rxjs: ^7.2
 
   react-rx@7.0.1:
     resolution: {integrity: sha512-Jid35zQmcYcar30FXdcn73XTCQtzI5+pXLzi4FwFzYZeA/Rqf5UOONdb0DMzjjzeqRv+Iq+Lz7GClzAeD8DXPg==}
@@ -27662,11 +27663,9 @@ snapshots:
       unist-util-filter: 5.0.1
       unist-util-visit-parents: 6.0.2
 
-  react-rx@4.2.5(react@19.3.0)(rxjs@7.8.2):
+  react-rx@5.1.2(react@19.3.0)(rxjs@7.8.2):
     dependencies:
-      observable-callback: 1.0.3(rxjs@7.8.2)
       react: 19.3.0
-      react-compiler-runtime: 1.0.0(react@19.3.0)
       rxjs: 7.8.2
       use-effect-event: 2.0.4(react@19.3.0)
 
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index ea01e96b72..099350a113 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -73,7 +73,7 @@ catalog:
   react-icons: ^5.7.0
   react-is: ^19.3.0
   react-photo-album: ^3.6.0
-  react-rx: ^4.2.5
+  react-rx: ^5.1.2
   rxjs: ^7.8.2
   sanity: ^6.16.0
   styled-components: ^6.5.3