diff --git a/Cargo.lock b/Cargo.lock
index 2bc54c4..763f42f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5132,19 +5132,19 @@ dependencies = [
 
 [[package]]
 name = "oxigraph"
-version = "0.4.11"
+version = "0.5.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86b57a5334aab94d88e1d24b238c093c5efb0d309614b16ac920f23ad77ee77d"
+checksum = "b4ee83ce0422e6dce39a325810a9c66af71577a0a6fb5d887764bf3ae6304667"
 dependencies = [
  "dashmap",
- "getrandom 0.2.17",
+ "getrandom 0.3.4",
  "libc",
  "oxiri",
  "oxrdf",
  "oxrdfio",
  "oxrocksdb-sys",
  "oxsdatatypes",
- "rand 0.8.6",
+ "rand 0.9.4",
  "rustc-hash 2.1.1",
  "siphasher",
  "sparesults",
@@ -5170,34 +5170,37 @@ checksum = "54b4ed3a7192fa19f5f48f99871f2755047fabefd7f222f12a1df1773796a102"
 
 [[package]]
 name = "oxjsonld"
-version = "0.1.0"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13a1a66dc569350f3f4e5eff8a8e1a72b0c9e6ad395bb5805493cb7a2fda185f"
+checksum = "f6e1380a504a8571763f13b8bcad629ff90d0300d47d8a519f3c6c599625840e"
 dependencies = [
  "json-event-parser",
  "oxiri",
  "oxrdf",
+ "ryu-js",
  "thiserror 2.0.18",
 ]
 
 [[package]]
 name = "oxrdf"
-version = "0.2.4"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a04761319ef84de1f59782f189d072cbfc3a9a40c4e8bded8667202fbd35b02a"
+checksum = "0afd5c28e4a399c57ee2bc3accd40c7b671fdc7b6537499f14e95b265af7d7e0"
 dependencies = [
+ "hex",
  "oxilangtag",
  "oxiri",
  "oxsdatatypes",
- "rand 0.8.6",
+ "rand 0.9.4",
+ "sha2",
  "thiserror 2.0.18",
 ]
 
 [[package]]
 name = "oxrdfio"
-version = "0.1.8"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14d33dd87769786a0bb7de342865e33bf0c6e9872fa76f1ede23e944fdc77898"
+checksum = "696223589ecbcab06b1a5df9b527dc25b0c656160cca38752fdb3878a5d3dd03"
 dependencies = [
  "oxjsonld",
  "oxrdf",
@@ -5208,9 +5211,9 @@ dependencies = [
 
 [[package]]
 name = "oxrdfxml"
-version = "0.1.7"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8d4bf9c5331127f01efbd1245d90fd75b7c546a97cb3e95461121ce1ad5b1c8"
+checksum = "cd5516ae083d09bc57ec65ed5ee97701481725de6ffaa83d968ab42a96157ba1"
 dependencies = [
  "oxilangtag",
  "oxiri",
@@ -5221,13 +5224,12 @@ dependencies = [
 
 [[package]]
 name = "oxrocksdb-sys"
-version = "0.4.11"
+version = "0.5.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16430f45934d678cb6f9823e7c1bfdbdce9025f670ad85b642e46ffe5609e6ff"
+checksum = "5b7ff9cbbbc3cd628be238ca7f22b4c31ab85c3fc1349ff452fd9fac78615e60"
 dependencies = [
  "bindgen",
  "cc",
- "libc",
 ]
 
 [[package]]
@@ -5241,9 +5243,9 @@ dependencies = [
 
 [[package]]
 name = "oxttl"
-version = "0.1.8"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d385f1776d7cace455ef6b7c54407838eff902ca897303d06eb12a26f4cf8a0"
+checksum = "f03fd471bd54c23d76631c0a2677aa4bb308d905f6e491ee35dcb0732b7c5c6c"
 dependencies = [
  "memchr",
  "oxilangtag",
@@ -6693,6 +6695,12 @@ version = "1.0.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9774ba4a74de5f7b1c1451ed6cd5285a32eddb5cccb8cc655a4e50009e06477f"
 
+[[package]]
+name = "ryu-js"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd29631678d6fb0903b69223673e122c32e9ae559d0960a38d574695ebc0ea15"
+
 [[package]]
 name = "safetensors"
 version = "0.3.3"
@@ -7051,9 +7059,9 @@ dependencies = [
 
 [[package]]
 name = "sparesults"
-version = "0.2.5"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f478f5ead16b6136bccee7a52ea43a615f8512086708f515e26ce33e0b184036"
+checksum = "7e13362decdcbeb3fefadff1631238c835c112027221e83d217cc5779f5a81c2"
 dependencies = [
  "json-event-parser",
  "memchr",
@@ -7064,9 +7072,9 @@ dependencies = [
 
 [[package]]
 name = "spareval"
-version = "0.1.4"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9d8ff5f1159e7416ed99160b962fa780851dddee133ef56e6b08a94023ea2c7"
+checksum = "c8eab80b96dc836e4cf8fda72daa67ccc0244dc5303be5d4566e8fd04adbdde5"
 dependencies = [
  "hex",
  "json-event-parser",
@@ -7074,7 +7082,7 @@ dependencies = [
  "oxiri",
  "oxrdf",
  "oxsdatatypes",
- "rand 0.8.6",
+ "rand 0.9.4",
  "regex",
  "rustc-hash 2.1.1",
  "sha1",
@@ -7087,26 +7095,26 @@ dependencies = [
 
 [[package]]
 name = "spargebra"
-version = "0.3.5"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8907e262be4b4b363218f4688f5654d423a958aa4b8d7c7a7f898be591fa474e"
+checksum = "46715eb957d1fe960cbbc0b713da8f78e2cb19df315b48fb09c9467a1c84f656"
 dependencies = [
  "oxilangtag",
  "oxiri",
  "oxrdf",
  "peg",
- "rand 0.8.6",
+ "rand 0.9.4",
  "thiserror 2.0.18",
 ]
 
 [[package]]
 name = "sparopt"
-version = "0.2.1"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1790bbdf13560c2afc245ab0f82a489003b3918e668ebd45c65fe46bfd7a1763"
+checksum = "aed7a854b8ea67618f8ce69aabb0e904d7704226060e9d5a2930eb3136c3fa3b"
 dependencies = [
  "oxrdf",
- "rand 0.8.6",
+ "rand 0.9.4",
  "spargebra",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 816273b..7d617ee 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,7 +40,7 @@ readme = "README.adoc"
 [workspace.dependencies]
 # Graph modality — SimpleGraphStore is default (pure Rust, no C++ linker needed).
 # Enable oxigraph-backend feature on verisim-graph for full RDF/SPARQL support.
-oxigraph = "0.4"
+oxigraph = "0.5"
 
 # Vector modality (HNSW)
 hnsw_rs = "0.3"