diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 44187ce..17b3ca9 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -59,7 +59,7 @@ jobs:
   lint:
     strategy:
       matrix:
-        version: ["13", "14", "15", "16", "17"]
+        version: ["13", "14", "15", "16", "17", "18"]
         arch: ["x86_64", "aarch64"]
     runs-on: ${{ matrix.arch == 'x86_64' && 'ubuntu-24.04' || 'ubuntu-24.04-arm' }}
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 87dad6f..dc961b2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -39,7 +39,7 @@ jobs:
     needs: ["semver"]
     strategy:
       matrix:
-        version: ["14", "15", "16", "17"]
+        version: ["14", "15", "16", "17", "18"]
         arch: ["x86_64", "aarch64"]
     runs-on: ${{ matrix.arch == 'x86_64' && 'ubuntu-24.04' || 'ubuntu-24.04-arm' }}
 
@@ -73,7 +73,7 @@ jobs:
     needs: ["semver", "build"]
     strategy:
       matrix:
-        version: ["14", "15", "16", "17"]
+        version: ["14", "15", "16", "17", "18"]
     env:
       SEMVER: ${{ needs.semver.outputs.SEMVER }}
     steps:
diff --git a/Cargo.toml b/Cargo.toml
index 239a834..113d556 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,6 +16,7 @@ pg14 = ["pgrx/pg14", "pgrx-tests/pg14"]
 pg15 = ["pgrx/pg15", "pgrx-tests/pg15"]
 pg16 = ["pgrx/pg16", "pgrx-tests/pg16"]
 pg17 = ["pgrx/pg17", "pgrx-tests/pg17"]
+pg18 = ["pgrx/pg18", "pgrx-tests/pg18"]
 pg_test = []
 lindera-ipadic = ["lindera/ipadic"]
 lindera-ipadic-neologd = ["lindera/ipadic-neologd"]
@@ -28,7 +29,7 @@ anyhow = "1.0.97"
 dashmap = "6.1.0"
 jieba-rs = "0.7.2"
 lindera = "0.42.2"
-pgrx = "=0.14.1"
+pgrx = "=0.16.1"
 regex = "1.11.1"
 rust-stemmers = { git = "https://github.com/tensorchord/rust-stemmers.git", rev = "51696378e352688b7ffd4fface615370ff5e8768" }
 serde = { version = "1.0.218", features = ["derive"] }
@@ -41,7 +42,7 @@ unicode-segmentation = "1.12.0"
 validator = { version = "0.20.0", features = ["derive"] }
 
 [dev-dependencies]
-pgrx-tests = "=0.14.1"
+pgrx-tests = "=0.16.1"
 
 [profile.release]
 opt-level = 3
diff --git a/src/lib.rs b/src/lib.rs
index e868554..d8a7ed3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,7 +16,8 @@ compile_error!("Target is not supported.");
     feature = "pg14",
     feature = "pg15",
     feature = "pg16",
-    feature = "pg17"
+    feature = "pg17",
+    feature = "pg18"
 )))]
 compile_error!("PostgreSQL version must be selected.");
 
diff --git a/tools/setup.sh b/tools/setup.sh
index bb4c584..1f0ea79 100755
--- a/tools/setup.sh
+++ b/tools/setup.sh
@@ -19,7 +19,7 @@ sudo -iu postgres createdb -O $USER $USER
 sudo -iu postgres psql -c 'ALTER SYSTEM SET shared_preload_libraries = "pg_tokenizer.so"'
 sudo systemctl stop postgresql
 
-curl -fsSL https://github.com/tensorchord/pgrx/releases/download/v0.14.1/cargo-pgrx-v0.14.1-$(uname -m)-unknown-linux-gnu.tar.gz | tar -xOzf - ./cargo-pgrx | install -m 755 /dev/stdin /usr/local/bin/cargo-pgrx
+curl -fsSL https://github.com/tensorchord/pgrx/releases/download/v0.16.1/cargo-pgrx-v0.16.1-$(uname -m)-unknown-linux-gnu.tar.gz | tar -xOzf - ./cargo-pgrx | install -m 755 /dev/stdin /usr/local/bin/cargo-pgrx
 cargo pgrx init --pg${version}=$(which pg_config)
 
 curl -fsSL https://github.com/risinglightdb/sqllogictest-rs/releases/download/v0.26.4/sqllogictest-bin-v0.26.4-$(uname -m)-unknown-linux-musl.tar.gz | tar -xOzf - ./sqllogictest | install -m 755 /dev/stdin /usr/local/bin/sqllogictest