diff --git a/.changeset/happy-lobsters-type.md b/.changeset/happy-lobsters-type.md
new file mode 100644
index 0000000000..b254b6aa3a
--- /dev/null
+++ b/.changeset/happy-lobsters-type.md
@@ -0,0 +1,6 @@
+---
+"electric-sql": patch
+"@electric-sql/prisma-generator": patch
+---
+
+Pin Zod to version 3.21.1
diff --git a/clients/typescript/package.json b/clients/typescript/package.json
index 23ccc9c79b..f45c84ea1f 100644
--- a/clients/typescript/package.json
+++ b/clients/typescript/package.json
@@ -175,7 +175,7 @@
     "uuid": "^9.0.0",
     "walkjs": "^3.2.4",
     "ws": "^8.8.1",
-    "zod": "^3.20.2"
+    "zod": "3.21.1"
   },
   "devDependencies": {
     "@ikscodes/browser-env": "^1.0.0",
diff --git a/e2e/satellite_client/package.json b/e2e/satellite_client/package.json
index 30dde7d55f..ba05c7d4d9 100644
--- a/e2e/satellite_client/package.json
+++ b/e2e/satellite_client/package.json
@@ -21,7 +21,7 @@
     "electric-sql": "workspace:*",
     "jsonwebtoken": "^9.0.0",
     "uuid": "^9.0.0",
-    "zod": "^3.21.4"
+    "zod": "3.21.1"
   },
   "devDependencies": {
     "@electric-sql/prisma-generator": "workspace:*",
diff --git a/examples/linearlite/package.json b/examples/linearlite/package.json
index 80bfde2ba4..91114e9261 100644
--- a/examples/linearlite/package.json
+++ b/examples/linearlite/package.json
@@ -67,7 +67,7 @@
     "uuid": "^9.0.0",
     "vite-plugin-svgr": "^3.2.0",
     "wa-sqlite": "rhashimoto/wa-sqlite#semver:^0.9.8",
-    "zod": "^3.22.2"
+    "zod": "3.21.1"
   },
   "devDependencies": {
     "@databases/pg": "^5.4.1",
diff --git a/generator/package.json b/generator/package.json
index d969065465..d86aa093e4 100644
--- a/generator/package.json
+++ b/generator/package.json
@@ -54,6 +54,6 @@
     "@prisma/generator-helper": "^4.11.0",
     "code-block-writer": "^11.0.3",
     "lodash": "^4.17.21",
-    "zod": "^3.21.1"
+    "zod": "3.21.1"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 44e032afb4..28970709b3 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -117,8 +117,8 @@ importers:
         specifier: ^8.8.1
         version: 8.13.0
       zod:
-        specifier: ^3.20.2
-        version: 3.21.4
+        specifier: 3.21.1
+        version: 3.21.1
     devDependencies:
       '@electric-sql/prisma-generator':
         specifier: workspace:*
@@ -261,8 +261,8 @@ importers:
         specifier: ^9.0.0
         version: 9.0.0
       zod:
-        specifier: ^3.21.4
-        version: 3.21.4
+        specifier: 3.21.1
+        version: 3.21.1
     devDependencies:
       '@electric-sql/prisma-generator':
         specifier: workspace:*
@@ -353,8 +353,8 @@ importers:
         specifier: ^4.17.21
         version: 4.17.21
       zod:
-        specifier: ^3.21.1
-        version: 3.21.4
+        specifier: 3.21.1
+        version: 3.21.1
     devDependencies:
       '@prisma/internals':
         specifier: ^4.11.0
@@ -14357,8 +14357,8 @@ packages:
       readable-stream: 3.6.2
     dev: true
 
-  /zod@3.21.4:
-    resolution: {integrity: sha512-m46AKbrzKVzOzs/DZgVnG5H55N1sv1M8qZU3A8RIKbs3mrACDNeIOeilDymVb2HdmP8uwshOCF4uJ8uM9rCqJw==}
+  /zod@3.21.1:
+    resolution: {integrity: sha512-+dTu2m6gmCbO9Ahm4ZBDapx2O6ZY9QSPXst2WXjcznPMwf2YNpn3RevLx4KkZp1OPW/ouFcoBtBzFz/LeY69oA==}
     dev: false
 
   github.com/rhashimoto/wa-sqlite/5266fd8cdb4b3ced41352ba7b1f0e919ac37027a: