diff --git a/Cargo.toml b/Cargo.toml
index c558f89..7653c79 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ash-molten"
 description = "Statically linked MoltenVK for Vulkan on Mac using Ash"
-version = "0.19.0+1.2.8"
+version = "0.20.0+1.2.11"
 authors = [
     "Embark <opensource@embark-studios.com>",
     "Maik Klein <maik.klein@embark-studios.com>",
diff --git a/build/build.rs b/build/build.rs
index 2701b5f..b997947 100644
--- a/build/build.rs
+++ b/build/build.rs
@@ -4,7 +4,7 @@ mod mac {
     use std::path::{Path, PathBuf};
 
     // MoltenVK git tagged release to use
-    pub static MOLTEN_VK_VERSION: &str = "1.2.8";
+    pub static MOLTEN_VK_VERSION: &str = "1.2.11-b1";
     pub static MOLTEN_VK_PATCH: Option<&str> = None;
 
     // The next two are useful for different kinds of bisection to find bugs.
@@ -189,7 +189,7 @@ mod mac {
 
         assert!(
             curl_status.success(),
-            "failed to download prebuilt libraries"
+            "failed to download prebuilt libraries from {:?}", download_url
         );
 
         let unzip_status = Command::new("unzip")