diff --git a/Cargo.lock b/Cargo.lock
index fa3b8635..a2e8fc95 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -169,39 +169,18 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a3076410a55c90011c298b04d0cfa770b00fa04e1e3c97d3f6c9de105a03844"
 
-[[package]]
-name = "fixedbitset"
-version = "0.5.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d674e81391d1e1ab681a28d99df07927c6d4aa5b027d7da16ba32d1d21ecd99"
-
 [[package]]
 name = "fnv"
 version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
-[[package]]
-name = "foldhash"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
-
 [[package]]
 name = "hashbrown"
 version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 
-[[package]]
-name = "hashbrown"
-version = "0.15.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
-dependencies = [
- "foldhash",
-]
-
 [[package]]
 name = "hashbrown"
 version = "0.16.1"
@@ -321,18 +300,6 @@ version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
-[[package]]
-name = "petgraph"
-version = "0.8.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8701b58ea97060d5e5b155d383a69952a60943f0e6dfe30b04c287beb0b27455"
-dependencies = [
- "fixedbitset",
- "hashbrown 0.15.5",
- "indexmap",
- "serde",
-]
-
 [[package]]
 name = "plotnik-cli"
 version = "0.1.0"
@@ -384,7 +351,6 @@ dependencies = [
  "indoc",
  "insta",
  "logos",
- "petgraph",
  "rowan",
  "serde",
  "serde_json",
diff --git a/crates/plotnik-lib/Cargo.toml b/crates/plotnik-lib/Cargo.toml
index 90ec802d..d2890af3 100644
--- a/crates/plotnik-lib/Cargo.toml
+++ b/crates/plotnik-lib/Cargo.toml
@@ -9,7 +9,6 @@ unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage_nightly)'] }
 [dependencies]
 annotate-snippets = "0.12.9"
 logos = "0.15.1"
-petgraph = "0.8.3"
 indexmap = "2"
 rowan = "0.16.1"
 serde = { version = "1.0.228", features = ["derive"] }