diff --git a/CHANGELOG.md b/CHANGELOG.md
index 30bc3c2..5802ddc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 0.1.8 (unreleased)
+## 0.1.8 (2021-09-07)
 
 - Added cast for `vector` to `real[]`
 
diff --git a/META.json b/META.json
index ca34af1..038525e 100644
--- a/META.json
+++ b/META.json
@@ -2,7 +2,7 @@
 	"name": "vector",
 	"abstract": "Open-source vector similarity search for Postgres",
 	"description": "Supports L2 distance, inner product, and cosine distance",
-	"version": "0.1.7",
+	"version": "0.1.8",
 	"maintainer": [
 		"Andrew Kane <andrew@ankane.org>"
 	],
@@ -20,7 +20,7 @@
 		"vector": {
 			"file": "sql/vector.sql",
 			"docfile": "README.md",
-			"version": "0.1.7",
+			"version": "0.1.8",
 			"abstract": "Open-source vector similarity search for Postgres"
 		}
 	},
diff --git a/Makefile b/Makefile
index 5dd4a38..98a5254 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 EXTENSION = vector
-EXTVERSION = 0.1.7
+EXTVERSION = 0.1.8
 
 MODULE_big = vector
 DATA = $(wildcard sql/*--*.sql)
diff --git a/README.md b/README.md
index d143531..3342103 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ Supports L2 distance, inner product, and cosine distance
 Compile and install the extension (supports Postgres 9.6+)
 
 ```sh
-git clone --branch v0.1.7 https://github.com/ankane/pgvector.git
+git clone --branch v0.1.8 https://github.com/ankane/pgvector.git
 cd pgvector
 make
 make install # may need sudo
@@ -167,7 +167,7 @@ This adds pgvector to the [Postgres image](https://hub.docker.com/_/postgres).
 You can also build the image manually
 
 ```sh
-git clone --branch v0.1.7 https://github.com/ankane/pgvector.git
+git clone --branch v0.1.8 https://github.com/ankane/pgvector.git
 cd pgvector
 docker build -t pgvector .
 ```
diff --git a/vector.control b/vector.control
index f11593d..786f961 100644
--- a/vector.control
+++ b/vector.control
@@ -1,4 +1,4 @@
 comment = 'vector data type and ivfflat access method'
-default_version = '0.1.7'
+default_version = '0.1.8'
 module_pathname = '$libdir/vector'
 relocatable = true