diff --git a/Cargo.lock b/Cargo.lock
index e01527095..60bfc27ce 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -453,14 +453,13 @@ checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"
 
 [[package]]
 name = "arroy"
-version = "0.6.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8578a72223dfa13dfd9fc144d15260d134361789ebdea9b16e85a511edc73c7d"
+version = "0.6.4-nested-rtxns"
+source = "git+https://github.com/meilisearch/arroy?branch=use-heed-nested-rtxns#61c8f4f0addeff968e80438018d0aee2c1eb8d67"
 dependencies = [
  "bytemuck",
  "byteorder",
  "enum-iterator",
- "heed",
+ "heed 0.22.1-nested-rtxns (registry+https://github.com/rust-lang/crates.io-index)",
  "memmap2",
  "nohash",
  "ordered-float 4.6.0",
@@ -1075,16 +1074,14 @@ dependencies = [
 
 [[package]]
 name = "cellulite"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71a41aa2cd021bc3f23d97cc1e645848ca8c279fc757d1570ba7fe7ddc021290"
+version = "0.3.1-nested-rtxns"
 dependencies = [
  "crossbeam",
  "geo",
  "geo-types",
  "geojson",
  "h3o",
- "heed",
+ "heed 0.22.1-nested-rtxns",
  "intmap",
  "ordered-float 5.0.0",
  "rayon",
@@ -2758,14 +2755,13 @@ dependencies = [
 
 [[package]]
 name = "hannoy"
-version = "0.0.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0dba13a271c49a119a97862ebf0a74131d879832868400d9fcd937b790058fdd"
+version = "0.0.9-nested-rtxns"
+source = "git+https://github.com/nnethercott/hannoy?branch=use-heed-nested-rtxns#d4ca5454eff6539e9fc2119f07113abebbda0a39"
 dependencies = [
  "bytemuck",
  "byteorder",
  "hashbrown 0.15.5",
- "heed",
+ "heed 0.22.1-nested-rtxns (registry+https://github.com/rust-lang/crates.io-index)",
  "madvise",
  "min-max-heap",
  "page_size",
@@ -2838,15 +2834,14 @@ checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "heed"
-version = "0.22.0"
-source = "git+https://github.com/meilisearch/heed?branch=allow-nested-rtxn-from-wtxn#05d9f224e274eaffcb023b9008028325769248cf"
+version = "0.22.1-nested-rtxns"
 dependencies = [
  "bitflags 2.9.4",
  "byteorder",
- "heed-traits",
- "heed-types",
+ "heed-traits 0.20.0",
+ "heed-types 0.21.0",
  "libc",
- "lmdb-master-sys",
+ "lmdb-master-sys 0.2.6-nested-rtxns",
  "once_cell",
  "page_size",
  "serde",
@@ -2854,19 +2849,54 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "heed"
+version = "0.22.1-nested-rtxns"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ff115ba5712b1f1fc7617b195f5c2f139e29c397ff79da040cd19db75ccc240"
+dependencies = [
+ "bitflags 2.9.4",
+ "byteorder",
+ "heed-traits 0.20.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heed-types 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc",
+ "lmdb-master-sys 0.2.6-nested-rtxns (registry+https://github.com/rust-lang/crates.io-index)",
+ "once_cell",
+ "page_size",
+ "synchronoise",
+ "url",
+]
+
 [[package]]
 name = "heed-traits"
 version = "0.20.0"
-source = "git+https://github.com/meilisearch/heed?branch=allow-nested-rtxn-from-wtxn#05d9f224e274eaffcb023b9008028325769248cf"
+
+[[package]]
+name = "heed-traits"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb3130048d404c57ce5a1ac61a903696e8fcde7e8c2991e9fcfc1f27c3ef74ff"
 
 [[package]]
 name = "heed-types"
 version = "0.21.0"
-source = "git+https://github.com/meilisearch/heed?branch=allow-nested-rtxn-from-wtxn#05d9f224e274eaffcb023b9008028325769248cf"
 dependencies = [
  "bincode 1.3.3",
  "byteorder",
- "heed-traits",
+ "heed-traits 0.20.0",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "heed-types"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13c255bdf46e07fb840d120a36dcc81f385140d7191c76a7391672675c01a55d"
+dependencies = [
+ "bincode 1.3.3",
+ "byteorder",
+ "heed-traits 0.20.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde",
  "serde_json",
 ]
@@ -3886,8 +3916,18 @@ checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
 
 [[package]]
 name = "lmdb-master-sys"
-version = "0.2.5"
-source = "git+https://github.com/meilisearch/heed?branch=allow-nested-rtxn-from-wtxn#05d9f224e274eaffcb023b9008028325769248cf"
+version = "0.2.6-nested-rtxns"
+dependencies = [
+ "cc",
+ "doxygen-rs",
+ "libc",
+]
+
+[[package]]
+name = "lmdb-master-sys"
+version = "0.2.6-nested-rtxns"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4ff85130e3c994b36877045fbbb138d521dea7197bfc19dc3d5d95101a8e20a"
 dependencies = [
  "cc",
  "doxygen-rs",
@@ -4225,7 +4265,7 @@ dependencies = [
  "grenad",
  "hannoy",
  "hashbrown 0.15.5",
- "heed",
+ "heed 0.22.1-nested-rtxns (registry+https://github.com/rust-lang/crates.io-index)",
  "hf-hub",
  "indexmap",
  "insta",
diff --git a/Cargo.toml b/Cargo.toml
index 624534701..defc7d173 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,6 +50,3 @@ opt-level = 3
 opt-level = 3
 [profile.dev.package.roaring]
 opt-level = 3
-
-[patch.crates-io]
-heed = { git = "https://github.com/meilisearch/heed", branch = "allow-nested-rtxn-from-wtxn" }
diff --git a/crates/milli/Cargo.toml b/crates/milli/Cargo.toml
index 417a374a3..11792c8a4 100644
--- a/crates/milli/Cargo.toml
+++ b/crates/milli/Cargo.toml
@@ -19,7 +19,7 @@ bstr = "1.12.0"
 bytemuck = { version = "1.23.1", features = ["extern_crate_alloc"] }
 byteorder = "1.5.0"
 charabia = { version = "0.9.7", default-features = false }
-cellulite = "0.3.0"
+cellulite = { version = "0.3.1-nested-rtxns", path = "../../../cellulite" }
 concat-arrays = "0.1.2"
 convert_case = "0.8.0"
 crossbeam-channel = "0.5.15"
@@ -34,7 +34,7 @@ grenad = { version = "0.5.0", default-features = false, features = [
     "rayon",
     "tempfile",
 ] }
-heed = { version = "0.22.0", default-features = false, features = [
+heed = { version = "0.22.1-nested-rtxns", default-features = false, features = [
     "serde-json",
     "serde-bincode",
 ] }
@@ -89,8 +89,8 @@ rhai = { version = "1.22.2", features = [
     "no_time",
     "sync",
 ] }
-arroy = "0.6.3"
-hannoy = { version = "0.0.8", features = ["arroy"] }
+arroy = { version = "0.6.4-nested-rtxns", git = "https://github.com/meilisearch/arroy", "branch" = "use-heed-nested-rtxns" }
+hannoy = { version = "0.0.9-nested-rtxns", git = "https://github.com/nnethercott/hannoy", "branch" = "use-heed-nested-rtxns", features = ["arroy"] }
 rand = "0.8.5"
 tracing = "0.1.41"
 ureq = { version = "2.12.1", features = ["json"] }