diff --git a/CHANGELOG.md b/CHANGELOG.md
index 06f74d633..f3d5bb947 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 ## Version 27
 
+### v27.2.6
+
+- Limited Zod compatibility to `~4.3.4` (<4.4.0):
+  - Zod 4.4.0 introduced a breaking change to how `brand` method works, making the current plugin approach incompatible;
+  - `@express-zod-api/zod-plugin` version bumped to `^4.1.1` (limited Zod compatibility as well);
+  - Supporting Zod 4.4+ requires a breaking change and will be addressed in v28 (next major version).
+
 ### v27.2.5
 
 - Reduced memory footprint at runtime: deferred population of well-known headers to Documentation;
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2d2801a20..ff3da3eb0 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -47,7 +47,7 @@ catalogs:
       specifier: ^8.51.0
       version: 8.55.0
     zod:
-      specifier: ^4.3.4
+      specifier: ~4.3.4
       version: 4.3.6
   prod:
     ramda:
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 27fb27f2a..6b9d1eb51 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -51,7 +51,7 @@ catalogs:
   prod:
     "ramda": "^0.32.0"
   peer:
-    "zod": "^4.3.4"
+    "zod": "~4.3.4"
   dev:
     "@types/compression": "^1.8.1"
     "@types/express": "^5.0.6"
@@ -66,7 +66,7 @@ catalogs:
     "http-errors": "^2.0.1"
     "typescript": "^6.0.2"
     "typescript-eslint": "^8.51.0"
-    "zod": "^4.3.4"
+    "zod": "~4.3.4"
 overrides:
   "@scarf/scarf": "-"
   "lightningcss": "-"
diff --git a/zod-plugin/CHANGELOG.md b/zod-plugin/CHANGELOG.md
index 238a77ce7..5fe7f190b 100644
--- a/zod-plugin/CHANGELOG.md
+++ b/zod-plugin/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 ## Version 4
 
+### v4.1.1
+
+- Limited compatibility to Zod versions `~4.3.4` (<4.4.0):
+  - Zod 4.4.0 introduced a breaking change to how `brand` method works, making the current plugin approach incompatible;
+  - Support for Zod 4.4+ will be added in v5 (the next major version).
+
 ### v4.1.0
 
 - Added `x-brand` type to the augmentation of Zod's `GlobalMeta` interface:
diff --git a/zod-plugin/README.md b/zod-plugin/README.md
index 71410198c..d4667d85d 100644
--- a/zod-plugin/README.md
+++ b/zod-plugin/README.md
@@ -18,7 +18,8 @@ This module extends Zod functionality when it's imported:
 
 ## Requirements
 
-- Zod `^4.3.4`
+- Compatible with Zod versions `~4.3.4` (<4.4.0);
+- Zod 4.4+ support will be available in v5 (the next major version).
 
 ## Basic usage