diff --git a/CHANGELOG.md b/CHANGELOG.md
index d92ee11c..d6a0397b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # main
 
 - Improve `pg` bindings.
+- Upgrade `@rescript/core` to `1.6.0`.
 
 # 2.5.0
 
diff --git a/package-lock.json b/package-lock.json
index 8ad12e4b..3efaecb7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2280,11 +2280,11 @@
       }
     },
     "node_modules/@rescript/core": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@rescript/core/-/core-1.3.0.tgz",
-      "integrity": "sha512-wNZOZ63sYcaIYZCmTZeIPCeLa3HCGgPbIOR8zjyNkoBYUlxNV8Nb2ZyqlXR5Mb9ttvv8fTV56JbKhyVEZEYo8g==",
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/@rescript/core/-/core-1.6.0.tgz",
+      "integrity": "sha512-Qx8G9NVSJlf6Z8yWwmy1k1kw3qf6okZdOJ7BLtWS0eFx5WYur4H5OXsnBzEc+W5WQ0uXgOrH965HQQHm0bpLSA==",
       "peerDependencies": {
-        "rescript": "^11.1.0-rc.7"
+        "rescript": ">=11.1.0"
       }
     },
     "node_modules/@rescript/tools": {
@@ -12342,7 +12342,7 @@
         "pgtyped-rescript": "lib/index.js"
       },
       "devDependencies": {
-        "@rescript/core": "1.3.0",
+        "@rescript/core": "1.6.0",
         "@types/debug": "4.1.8",
         "@types/fs-extra": "11.0.1",
         "@types/glob": "8.1.0",
@@ -12363,7 +12363,7 @@
       "version": "2.2.1",
       "license": "MIT",
       "dependencies": {
-        "@rescript/core": "1.3.0",
+        "@rescript/core": "1.6.0",
         "expect": "29.6.2",
         "pg": "8.11.2",
         "pgtyped-rescript": "^2.4.0",
@@ -14017,7 +14017,7 @@
     "@pgtyped/example": {
       "version": "file:packages/example",
       "requires": {
-        "@rescript/core": "1.3.0",
+        "@rescript/core": "1.6.0",
         "@types/pg": "8.10.2",
         "expect": "29.6.2",
         "pg": "8.11.2",
@@ -14070,9 +14070,9 @@
       "optional": true
     },
     "@rescript/core": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@rescript/core/-/core-1.3.0.tgz",
-      "integrity": "sha512-wNZOZ63sYcaIYZCmTZeIPCeLa3HCGgPbIOR8zjyNkoBYUlxNV8Nb2ZyqlXR5Mb9ttvv8fTV56JbKhyVEZEYo8g==",
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/@rescript/core/-/core-1.6.0.tgz",
+      "integrity": "sha512-Qx8G9NVSJlf6Z8yWwmy1k1kw3qf6okZdOJ7BLtWS0eFx5WYur4H5OXsnBzEc+W5WQ0uXgOrH965HQQHm0bpLSA==",
       "requires": {}
     },
     "@rescript/tools": {
@@ -19678,7 +19678,7 @@
       "requires": {
         "@pgtyped/parser": "^2.1.0",
         "@pgtyped/wire": "^2.2.0",
-        "@rescript/core": "1.3.0",
+        "@rescript/core": "1.6.0",
         "@rescript/tools": "^0.6.2",
         "@types/debug": "4.1.8",
         "@types/fs-extra": "11.0.1",
diff --git a/packages/cli/package.json b/packages/cli/package.json
index a116c9e2..227e7fec 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -57,7 +57,7 @@
     "yargs": "^17.0.1"
   },
   "devDependencies": {
-    "@rescript/core": "1.3.0",
+    "@rescript/core": "1.6.0",
     "@types/debug": "4.1.8",
     "@types/fs-extra": "11.0.1",
     "@types/glob": "8.1.0",
diff --git a/packages/example/package.json b/packages/example/package.json
index 3c2f36f6..402421ac 100644
--- a/packages/example/package.json
+++ b/packages/example/package.json
@@ -22,7 +22,7 @@
     "check": "tsc --noEmit"
   },
   "dependencies": {
-    "@rescript/core": "1.3.0",
+    "@rescript/core": "1.6.0",
     "expect": "29.6.2",
     "pg": "8.11.2",
     "pgtyped-rescript": "^2.4.0",