diff --git a/memcache/README.md b/memcache/README.md
index bdf6703d..e622a28e 100644
--- a/memcache/README.md
+++ b/memcache/README.md
@@ -14,7 +14,14 @@ A Memcache storage driver using [`bradfitz/gomemcache`](https://github.com/bradf
 func New(config ...Config) Storage
 
 var ErrNotExist = errors.New("key does not exist")
+
+func (s *Storage) Get(key string) ([]byte, error)
+func (s *Storage) Set(key string, val []byte, exp time.Duration) error
+func (s *Storage) Delete(key string) error
+func (s *Storage) Reset() error
+func (s *Storage) Close() error
 ```
+
 ### Installation
 Memory is tested on the 2 last [Go versions](https://golang.org/dl/) with support for modules. So make sure to initialize one first if you didn't do that yet:
 ```bash
diff --git a/memory/README.md b/memory/README.md
index 5113386e..8d5c9ffa 100644
--- a/memory/README.md
+++ b/memory/README.md
@@ -20,6 +20,7 @@ func (s *Storage) Get(key string) ([]byte, error)
 func (s *Storage) Set(key string, val []byte, exp time.Duration) error
 func (s *Storage) Delete(key string) error
 func (s *Storage) Reset() error
+func (s *Storage) Close() error
 ```
 
 ### Installation
diff --git a/mongodb/README.md b/mongodb/README.md
index 86cefc42..4c56a0f0 100644
--- a/mongodb/README.md
+++ b/mongodb/README.md
@@ -19,6 +19,7 @@ func (s *Storage) Get(key string) ([]byte, error)
 func (s *Storage) Set(key string, val []byte, exp time.Duration) error
 func (s *Storage) Delete(key string) error
 func (s *Storage) Reset() error
+func (s *Storage) Close() error
 ```
 ### Installation
 MongoDB is tested on the 2 last [Go versions](https://golang.org/dl/) with support for modules. So make sure to initialize one first if you didn't do that yet:
diff --git a/mysql/README.md b/mysql/README.md
index 169eb6fb..ed468e25 100644
--- a/mysql/README.md
+++ b/mysql/README.md
@@ -19,6 +19,7 @@ func (s *Storage) Get(key string) ([]byte, error)
 func (s *Storage) Set(key string, val []byte, exp time.Duration) error
 func (s *Storage) Delete(key string) error
 func (s *Storage) Reset() error
+func (s *Storage) Close() error
 ```
 ### Installation
 MySQL is tested on the 2 last [Go versions](https://golang.org/dl/) with support for modules. So make sure to initialize one first if you didn't do that yet:
diff --git a/postgres/README.md b/postgres/README.md
index 6e745281..a47ed091 100644
--- a/postgres/README.md
+++ b/postgres/README.md
@@ -19,6 +19,7 @@ func (s *Storage) Get(key string) ([]byte, error)
 func (s *Storage) Set(key string, val []byte, exp time.Duration) error
 func (s *Storage) Delete(key string) error
 func (s *Storage) Reset() error
+func (s *Storage) Close() error
 ```
 ### Installation
 Postgres is tested on the 2 last [Go versions](https://golang.org/dl/) with support for modules. So make sure to initialize one first if you didn't do that yet:
diff --git a/redis/README.md b/redis/README.md
index 46009e62..30ed2291 100644
--- a/redis/README.md
+++ b/redis/README.md
@@ -19,6 +19,7 @@ func (s *Storage) Get(key string) ([]byte, error)
 func (s *Storage) Set(key string, val []byte, exp time.Duration) error
 func (s *Storage) Delete(key string) error
 func (s *Storage) Reset() error
+func (s *Storage) Close() error
 ```
 ### Installation
 Redis is tested on the 2 last [Go versions](https://golang.org/dl/) with support for modules. So make sure to initialize one first if you didn't do that yet:
diff --git a/sqlite3/README.md b/sqlite3/README.md
index 4483b917..abc29149 100644
--- a/sqlite3/README.md
+++ b/sqlite3/README.md
@@ -19,6 +19,7 @@ func (s *Storage) Get(key string) ([]byte, error)
 func (s *Storage) Set(key string, val []byte, exp time.Duration) error
 func (s *Storage) Delete(key string) error
 func (s *Storage) Reset() error
+func (s *Storage) Close() error
 ```
 ### Installation
 SQLite3 is tested on the 2 last [Go versions](https://golang.org/dl/) with support for modules. So make sure to initialize one first if you didn't do that yet: