diff --git a/gdk4/Cargo.toml b/gdk4/Cargo.toml
index be2970479f5b..b3d226235cc0 100644
--- a/gdk4/Cargo.toml
+++ b/gdk4/Cargo.toml
@@ -25,6 +25,7 @@ v4_10 = ["gdk4-sys/v4_10", "v4_8"]
 v4_12 = ["gdk4-sys/v4_12", "v4_10"]
 v4_14 = ["gdk4-sys/v4_14", "v4_12"]
 v4_16 = ["gdk4-sys/v4_16", "v4_14"]
+v4_18 = ["gdk4-sys/v4_18", "v4_16"]
 gl = ["dep:gl"]
 
 [dependencies]
diff --git a/gdk4/README.md b/gdk4/README.md
index 6e0e9b1bc441..045355b47efa 100644
--- a/gdk4/README.md
+++ b/gdk4/README.md
@@ -40,6 +40,7 @@ gdk = { git = "https://github.com/gtk-rs/gtk4-rs.git", package = "gdk4" }
 
 | Feature | Description |
 | ---     | ----------- |
+| `v4_18` | Enable the new APIs part of GTK 4.18 |
 | `v4_16` | Enable the new APIs part of GTK 4.16 |
 | `v4_14` | Enable the new APIs part of GTK 4.14 |
 | `v4_12` | Enable the new APIs part of GTK 4.12 |
diff --git a/gdk4/sys/Cargo.toml b/gdk4/sys/Cargo.toml
index 389a5d6da727..efb330844361 100644
--- a/gdk4/sys/Cargo.toml
+++ b/gdk4/sys/Cargo.toml
@@ -58,7 +58,7 @@ version = "4.14"
 version = "4.16"
 
 [package.metadata.system-deps.gtk4.v4_18]
-version = "4.18"
+version = "4.17"
 
 [package.metadata.docs.rs]
 rustc-args = ["--cfg", "docsrs"]
diff --git a/gtk4/Cargo.toml b/gtk4/Cargo.toml
index f84d0048bda9..c508e4799ccb 100644
--- a/gtk4/Cargo.toml
+++ b/gtk4/Cargo.toml
@@ -25,7 +25,7 @@ v4_10 = ["gtk4-sys/v4_10", "v4_8", "gdk/v4_10", "gsk/v4_10"]
 v4_12 = ["gtk4-sys/v4_12", "v4_10", "gdk/v4_12"]
 v4_14 = ["gtk4-sys/v4_14", "v4_12", "gdk/v4_14", "gsk/v4_14"]
 v4_16 = ["gtk4-sys/v4_16", "v4_14", "gdk/v4_16", "gsk/v4_16"]
-v4_18 = ["gtk4-sys/v4_18", "v4_16"]
+v4_18 = ["gtk4-sys/v4_18", "gdk/v4_18", "v4_16"]
 gio_v2_80 = ["gio/v2_80"]
 xml_validation = ["gtk4-macros/xml_validation"]
 blueprint = ["gtk4-macros/blueprint"]