diff --git a/Cargo.toml b/Cargo.toml
index 2d19add..fc07604 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,13 +16,13 @@ build = "build.rs"
 crate-type = ['lib', 'cdylib', 'staticlib']
 
 [build-dependencies]
-cbindgen = "0.24.0"
+cbindgen = "0.26.0"
 
 [dependencies]
 anyhow = "1.0"
 bytes = "1.0"
 # only so cargo-fairy picks it up..
-cbindgen = "0.24.0"
+cbindgen = "0.26.0"
 futures = "0.3"
 hex = "0.4.3"
 h2 = { version = "0.3", features = [ "stream" ] }
diff --git a/build.rs b/build.rs
index 8a1008f..f96d123 100644
--- a/build.rs
+++ b/build.rs
@@ -19,6 +19,7 @@ fn main() {
         .with_crate(&crate_dir)
         .with_header(header)
         .with_include_guard("PROXMOX_BACKUP_QEMU_H")
+        .exclude_item("wakeup_callback")
         .generate()
         .unwrap()
         .write_to_file("proxmox-backup-qemu.h");
diff --git a/debian/control b/debian/control
index 39a2a11..a1583ff 100644
--- a/debian/control
+++ b/debian/control
@@ -11,7 +11,7 @@ Build-Depends: cargo:native,
                librust-bincode-1+default-dev,
                librust-bitflags-1+default-dev (>= 1.2.1-~~),
                librust-bytes-1+default-dev,
-               librust-cbindgen-0.24+default-dev,
+               librust-cbindgen-0.26+default-dev,
                librust-crc32fast-1+default-dev,
                librust-endian-trait-0.6+arrays-dev,
                librust-endian-trait-0.6+default-dev,
diff --git a/submodules/proxmox-backup b/submodules/proxmox-backup
index a8f60bd..6ee22cd 160000
--- a/submodules/proxmox-backup
+++ b/submodules/proxmox-backup
@@ -1 +1 @@
-Subproject commit a8f60bd1287b7b2c7e50d3f7e1def79a01a1babc
+Subproject commit 6ee22cdd41c6577051f729ed3efd2a9a88e8d262