diff --git a/Cargo.lock b/Cargo.lock
index 624a77580..505aeb48c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4361,7 +4361,7 @@ dependencies = [
 [[package]]
 name = "opencadcodec"
 version = "0.6.0"
-source = "git+https://github.com/HakanSeven12/opencadcodec.git?rev=c6f5d51#c6f5d51a11d88c2cbfc0b0a4c4e9b18838709221"
+source = "git+https://github.com/HakanSeven12/opencadcodec.git?rev=d1ebd21#d1ebd214922bc1187dc39096cc5ec02fef9c8099"
 dependencies = [
  "anyhow",
  "bitflags 2.13.1",
@@ -4384,7 +4384,7 @@ dependencies = [
 [[package]]
 name = "opencadgraph"
 version = "0.1.0"
-source = "git+https://github.com/HakanSeven12/opencadgraph.git?rev=c4a341f#c4a341fec625376b3219a88aaf5b6f93796cb6c6"
+source = "git+https://github.com/HakanSeven12/opencadgraph.git?rev=79570a2#79570a2768e663e5ad93553cd108e4bf69d335a5"
 dependencies = [
  "opencadkernel",
  "serde_json",
@@ -4393,7 +4393,7 @@ dependencies = [
 [[package]]
 name = "opencadkernel"
 version = "0.1.0"
-source = "git+https://github.com/HakanSeven12/opencadkernel.git?rev=3d77c6b#3d77c6bd5ec2c7a380b2ae296bafd56dbe430fb4"
+source = "git+https://github.com/HakanSeven12/opencadkernel.git?rev=0423154#042315485ed8cf7dc4b7ea1079216ddc997f2007"
 dependencies = [
  "cavalier_contours",
  "opencadcodec",
@@ -4404,7 +4404,7 @@ dependencies = [
 [[package]]
 name = "opencadkernel-constraints"
 version = "0.1.0"
-source = "git+https://github.com/HakanSeven12/opencadkernel.git?rev=3d77c6b#3d77c6bd5ec2c7a380b2ae296bafd56dbe430fb4"
+source = "git+https://github.com/HakanSeven12/opencadkernel.git?rev=0423154#042315485ed8cf7dc4b7ea1079216ddc997f2007"
 dependencies = [
  "nalgebra",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 9f760c735..03a16e052 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,10 +37,10 @@ rfd = "0.17"
 clap = { version = "4", features = ["derive", "string"] }
 env_logger = "0.11"
 log = "0.4"
-codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "c6f5d51", features = ["serde"] }
-kernel = { package = "opencadkernel", git = "https://github.com/HakanSeven12/opencadkernel.git", rev = "3d77c6b", features = ["acis", "offset"] }
-kernel-constraints = { package = "opencadkernel-constraints", git = "https://github.com/HakanSeven12/opencadkernel.git", rev = "3d77c6b" }
-graph = { package = "opencadgraph", git = "https://github.com/HakanSeven12/opencadgraph.git", rev = "c4a341f" }
+codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "d1ebd21", features = ["serde"] }
+kernel = { package = "opencadkernel", git = "https://github.com/HakanSeven12/opencadkernel.git", rev = "0423154", features = ["acis", "offset"] }
+kernel-constraints = { package = "opencadkernel-constraints", git = "https://github.com/HakanSeven12/opencadkernel.git", rev = "0423154" }
+graph = { package = "opencadgraph", git = "https://github.com/HakanSeven12/opencadgraph.git", rev = "79570a2" }
 dwg-thumbnailer = { path = "crates/dwg-thumbnailer" }
 # Shared SAVE serialization dispatch + web-worker wire format: one
 # implementation for the inline (fallback/native) path and the worker path.
diff --git a/crates/ocs_plugin_api/Cargo.toml b/crates/ocs_plugin_api/Cargo.toml
index 5c1902187..170012ce6 100644
--- a/crates/ocs_plugin_api/Cargo.toml
+++ b/crates/ocs_plugin_api/Cargo.toml
@@ -15,7 +15,7 @@ serde_json = { version = "1", optional = true }
 # Pulled in only by the `host` feature, which adds the `opencadcodec`-typed
 # `HostApi` runtime surface. The default crate stays dependency-free so engine
 # crates and external tooling can depend on the manifest/ribbon contract cheaply.
-codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "c6f5d51", optional = true, features = ["serde"] }
+codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "d1ebd21", optional = true, features = ["serde"] }
 
 # Runtime IPC and serialization (host feature only).
 interprocess = { version = "2", optional = true }
@@ -39,7 +39,7 @@ serde_json = "1"
 serde = { version = "1", features = ["derive"] }
 cargo-lock = "11"
 # opencadcodec is scanned at build time to generate the embedded type registry.
-codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "c6f5d51", features = ["serde"] }
+codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "d1ebd21", features = ["serde"] }
 
 [dev-dependencies]
 serde_json = "1"
diff --git a/crates/ocs_save/Cargo.toml b/crates/ocs_save/Cargo.toml
index 6779028f3..dc4ec7485 100644
--- a/crates/ocs_save/Cargo.toml
+++ b/crates/ocs_save/Cargo.toml
@@ -10,6 +10,6 @@ publish = false
 # exactly one implementation. No UI/app dependencies — only the codec + serde.
 
 [dependencies]
-codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "c6f5d51", features = ["serde"] }
+codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "d1ebd21", features = ["serde"] }
 bincode = "1.3"
 serde = { version = "1", features = ["derive"] }
diff --git a/crates/ocs_web_worker/Cargo.toml b/crates/ocs_web_worker/Cargo.toml
index 3a38802c8..54600567f 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]
-codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "c6f5d51", features = ["serde"] }
+codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "d1ebd21", features = ["serde"] }
 bincode = "1.3"
 serde = { version = "1", features = ["derive"] }
 console_error_panic_hook = "0.1"
diff --git a/plugins/opencad-python/Cargo.lock b/plugins/opencad-python/Cargo.lock
index d2f52d6c4..b7ea06478 100644
--- a/plugins/opencad-python/Cargo.lock
+++ b/plugins/opencad-python/Cargo.lock
@@ -1264,7 +1264,7 @@ dependencies = [
 [[package]]
 name = "opencadcodec"
 version = "0.6.0"
-source = "git+https://github.com/HakanSeven12/opencadcodec.git?rev=c6f5d51#c6f5d51a11d88c2cbfc0b0a4c4e9b18838709221"
+source = "git+https://github.com/HakanSeven12/opencadcodec.git?rev=d1ebd21#d1ebd214922bc1187dc39096cc5ec02fef9c8099"
 dependencies = [
  "anyhow",
  "bitflags",