diff --git a/Cargo.lock b/Cargo.lock
index b29f0f74a..b458ea0e2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -79,7 +79,7 @@ checksum = "366ffbaa4442f4684d91e2cd7c5ea7c4ed8add41959a31447066e279e432b618"
 [[package]]
 name = "acadrust"
 version = "0.5.4"
-source = "git+https://github.com/ramox81/cadcodec.git?rev=b128baed2b8a24eefde667d9ecd22db2bc1ccf50#b128baed2b8a24eefde667d9ecd22db2bc1ccf50"
+source = "git+https://github.com/ramox81/cadcodec.git?rev=c50afe983bbdd62e75cdb0cdb4339b261001bbb7#c50afe983bbdd62e75cdb0cdb4339b261001bbb7"
 dependencies = [
  "ahash 0.8.12",
  "anyhow",
@@ -885,7 +885,7 @@ checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"
 [[package]]
 name = "cadkernel"
 version = "0.1.0"
-source = "git+https://github.com/ramox81/cadkernel.git?rev=f1e21702359e8f1c064ac61e298e4efd008fff68#f1e21702359e8f1c064ac61e298e4efd008fff68"
+source = "git+https://github.com/ramox81/cadkernel.git?rev=27c3794cf6a25a7cc73624e5b33188188a549879#27c3794cf6a25a7cc73624e5b33188188a549879"
 dependencies = [
  "acadrust",
  "cavalier_contours",
diff --git a/Cargo.toml b/Cargo.toml
index ec9f299fb..fbb7309bf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,8 +31,8 @@ glam = { version = "0.33", features = ["bytemuck"] }
 rfd = "0.17"
 clap = { version = "4", features = ["derive", "string"] }
 env_logger = "0.11"
-acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "b128baed2b8a24eefde667d9ecd22db2bc1ccf50", features = ["serde"] }
-cadkernel = { git = "https://github.com/ramox81/cadkernel.git", rev = "f1e21702359e8f1c064ac61e298e4efd008fff68", features = ["acis", "offset"] }
+acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "c50afe983bbdd62e75cdb0cdb4339b261001bbb7", features = ["serde"] }
+cadkernel = { git = "https://github.com/ramox81/cadkernel.git", rev = "27c3794cf6a25a7cc73624e5b33188188a549879", features = ["acis", "offset"] }
 dwg-thumbnailer = { path = "crates/dwg-thumbnailer" }
 flate2 = "1"
 image = { version = "0.25", default-features = false, features = ["png", "jpeg", "bmp", "tiff"] }
diff --git a/crates/ocs_doc_api/Cargo.toml b/crates/ocs_doc_api/Cargo.toml
index 60a22f68c..879f358af 100644
--- a/crates/ocs_doc_api/Cargo.toml
+++ b/crates/ocs_doc_api/Cargo.toml
@@ -14,8 +14,8 @@ bincode = "1.3"
 thiserror = "1"
 
 # Host adapters convert ObjectId to acadrust handles; kernel handles stay local.
-acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "b128baed2b8a24eefde667d9ecd22db2bc1ccf50", features = ["serde"], optional = true }
-cadkernel = { git = "https://github.com/ramox81/cadkernel.git", rev = "f1e21702359e8f1c064ac61e298e4efd008fff68", features = ["acis", "offset"], optional = true }
+acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "c50afe983bbdd62e75cdb0cdb4339b261001bbb7", features = ["serde"], optional = true }
+cadkernel = { git = "https://github.com/ramox81/cadkernel.git", rev = "27c3794cf6a25a7cc73624e5b33188188a549879", features = ["acis", "offset"], optional = true }
 ocs_plugin_api = { path = "../ocs_plugin_api", optional = true, features = ["host"] }
 
 [build-dependencies]
diff --git a/crates/ocs_plugin_api/Cargo.toml b/crates/ocs_plugin_api/Cargo.toml
index deadb8e71..198cb674e 100644
--- a/crates/ocs_plugin_api/Cargo.toml
+++ b/crates/ocs_plugin_api/Cargo.toml
@@ -14,7 +14,7 @@ serde = { version = "1", features = ["derive"] }
 # Pulled in only by the `host` feature, which adds the `acadrust`-typed
 # `HostApi` runtime surface. The default crate stays dependency-free so engine
 # crates and external tooling can depend on the manifest/ribbon contract cheaply.
-acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "b128baed2b8a24eefde667d9ecd22db2bc1ccf50", optional = true, features = ["serde"] }
+acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "c50afe983bbdd62e75cdb0cdb4339b261001bbb7", optional = true, features = ["serde"] }
 
 # Runtime IPC and serialization (host feature only).
 interprocess = { version = "2", optional = true }
@@ -38,7 +38,7 @@ serde_json = "1"
 serde = { version = "1", features = ["derive"] }
 cargo-lock = "11"
 # acadrust is scanned at build time to generate the embedded type registry.
-acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "b128baed2b8a24eefde667d9ecd22db2bc1ccf50", features = ["serde"] }
+acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "c50afe983bbdd62e75cdb0cdb4339b261001bbb7", features = ["serde"] }
 
 [dev-dependencies]
 serde_json = "1"
diff --git a/crates/ocs_web_worker/Cargo.toml b/crates/ocs_web_worker/Cargo.toml
index b11b2f0f4..d6a227271 100644
--- a/crates/ocs_web_worker/Cargo.toml
+++ b/crates/ocs_web_worker/Cargo.toml
@@ -8,7 +8,7 @@ publish = false
 crate-type = ["cdylib"]
 
 [dependencies]
-acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "b128baed2b8a24eefde667d9ecd22db2bc1ccf50", features = ["serde"] }
+acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "c50afe983bbdd62e75cdb0cdb4339b261001bbb7", features = ["serde"] }
 bincode = "1.3"
 serde = { version = "1", features = ["derive"] }
 console_error_panic_hook = "0.1"
diff --git a/crates/plugin-template-api2/Cargo.toml b/crates/plugin-template-api2/Cargo.toml
index 2e6b7c678..70804f398 100644
--- a/crates/plugin-template-api2/Cargo.toml
+++ b/crates/plugin-template-api2/Cargo.toml
@@ -10,4 +10,4 @@ crate-type = ["cdylib"]
 
 [dependencies]
 ocs_plugin_api = { path = "../ocs_plugin_api", features = ["host"] }
-acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "b128baed2b8a24eefde667d9ecd22db2bc1ccf50", features = ["serde"] }
+acadrust = { git = "https://github.com/ramox81/cadcodec.git", rev = "c50afe983bbdd62e75cdb0cdb4339b261001bbb7", features = ["serde"] }