diff --git a/Cargo.lock b/Cargo.lock
index 2ccb6ae..37ee401 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "addr2line"
@@ -428,9 +428,9 @@ dependencies = [
 
 [[package]]
 name = "imap-proto"
-version = "0.16.4"
+version = "0.16.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22e70cd66882c8cb1c9802096ba75212822153c51478dc61621e1a22f6c92361"
+checksum = "ba1f9b30846c3d04371159ef3a0413ce7c1ae0a8c619cd255c60b3d902553f22"
 dependencies = [
  "nom",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 3bacf63..cd400a1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,8 +1,10 @@
 [package]
 name = "imap"
 version = "3.0.0-alpha.15"
-authors = ["Jon Gjengset <jon@thesquareplanet.com>",
-           "Matt McCoy <mattnenterprise@yahoo.com>"]
+authors = [
+    "Jon Gjengset <jon@thesquareplanet.com>",
+    "Matt McCoy <mattnenterprise@yahoo.com>",
+]
 documentation = "https://docs.rs/imap/"
 repository = "https://github.com/jonhoo/rust-imap"
 homepage = "https://github.com/jonhoo/rust-imap"
@@ -26,10 +28,10 @@ native-tls = { version = "0.2.2", optional = true }
 rustls-connector = { version = "0.19.0", optional = true }
 regex = "1.0"
 bufstream = "0.1.3"
-imap-proto = "0.16.1"
+imap-proto = "0.16.6"
 nom = { version = "7.1.0", default-features = false }
 base64 = "0.22"
-chrono = { version = "0.4.37", default-features = false, features = ["std"]}
+chrono = { version = "0.4.37", default-features = false, features = ["std"] }
 lazy_static = "1.4"
 ouroboros = "0.18.0"
 
diff --git a/src/types/fetch.rs b/src/types/fetch.rs
index 57e914f..08ff6fb 100644
--- a/src/types/fetch.rs
+++ b/src/types/fetch.rs
@@ -241,6 +241,28 @@ impl<'a> Fetch<'a> {
         })
     }
 
+    /// Extract the `X-GM-MSGID` of a `FETCH` response
+    ///
+    /// This is a Gmail-specific extension. See their
+    /// [developer's page](https://developers.google.com/gmail/imap/imap-extensions) for details.
+    pub fn gmail_msgid(&'a self) -> Option<&'a u64> {
+        self.fetch.iter().find_map(|av| match av {
+            AttributeValue::GmailMsgId(msgid) => Some(msgid),
+            _ => None,
+        })
+    }
+
+    /// Extract the `X-GM-THRID` of a `FETCH` response
+    ///
+    /// This is a Gmail-specific extension. See their
+    /// [developer's page](https://developers.google.com/gmail/imap/imap-extensions) for details.
+    pub fn gmail_thrid(&'a self) -> Option<&'a u64> {
+        self.fetch.iter().find_map(|av| match av {
+            AttributeValue::GmailThrId(thrid) => Some(thrid),
+            _ => None,
+        })
+    }
+
     /// Get an owned copy of the [`Fetch`].
     pub fn into_owned(self) -> Fetch<'static> {
         Fetch {