diff --git a/Cargo.lock b/Cargo.lock
index fd4de1b..c9d5229 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "adler"
@@ -17,15 +17,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "atomic-polyfill"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8cf2bce30dfe09ef0bfaef228b9d414faaf7e563035494d7fe092dba54b300f4"
-dependencies = [
- "critical-section",
-]
-
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -59,12 +50,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "critical-section"
-version = "1.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7059fff8937831a9ae6f0fe4d658ffabf58f2ca96aa9dec1c889f936f705f216"
-
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.5"
@@ -122,15 +107,6 @@ dependencies = [
  "miniz_oxide",
 ]
 
-[[package]]
-name = "hash32"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0c35f58762feb77d74ebe43bdbc3210f09be9fe6742234d573bacc26ed92b67"
-dependencies = [
- "byteorder",
-]
-
 [[package]]
 name = "hash32"
 version = "0.3.1"
@@ -142,22 +118,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.14.3"
+version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
-
-[[package]]
-name = "heapless"
-version = "0.7.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdc6457c0eb62c71aac4bc17216026d8410337c4126773b9c5daba343f17964f"
-dependencies = [
- "atomic-polyfill",
- "hash32 0.2.1",
- "rustc_version",
- "spin",
- "stable_deref_trait",
-]
+checksum = "bf151400ff0baff5465007dd2f3e717f3fe502074ca563069ce3a6629d07b289"
 
 [[package]]
 name = "heapless"
@@ -165,7 +128,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0bfb9eb618601c89945a70e254898da93b13be0388091d42117462b265bb3fad"
 dependencies = [
- "hash32 0.3.1",
+ "hash32",
  "stable_deref_trait",
 ]
 
@@ -177,9 +140,9 @@ checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "indexmap"
-version = "2.2.1"
+version = "2.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "433de089bd45971eecf4668ee0ee8f4cec17db4f8bd8f7bc3197a6ce37aa7d9b"
+checksum = "62f822373a4fe84d4bb149bf54e584a7f4abec90e072ed49cda0edea5b95471f"
 dependencies = [
  "equivalent",
  "hashbrown",
@@ -197,16 +160,6 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
-[[package]]
-name = "lock_api"
-version = "0.4.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c168f8615b12bc01f9c17e2eb0cc07dcae1940121185446edc3744920e8ef45"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
 [[package]]
 name = "matrixmultiply"
 version = "0.3.8"
@@ -301,15 +254,15 @@ checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
 
 [[package]]
 name = "pdbtbx"
-version = "0.11.0"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8aeda12d25a2e102a6e3f1efd8fe2afd054cbafa7d54414d5015e8e0f4beb4b"
+checksum = "932b111b429ecfb94434569372e9538543b1abee9c51908f7a92f18b934f03bf"
 dependencies = [
  "doc-cfg",
  "flate2",
  "indexmap",
  "rayon",
- "rstar 0.11.0",
+ "rstar",
  "serde",
 ]
 
@@ -375,24 +328,13 @@ dependencies = [
  "crossbeam-utils",
 ]
 
-[[package]]
-name = "rstar"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73111312eb7a2287d229f06c00ff35b51ddee180f017ab6dec1f69d62ac098d6"
-dependencies = [
- "heapless 0.7.17",
- "num-traits",
- "smallvec",
-]
-
 [[package]]
 name = "rstar"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "133315eb94c7b1e8d0cb097e5a710d850263372fd028fff18969de708afc7008"
 dependencies = [
- "heapless 0.8.0",
+ "heapless",
  "num-traits",
  "smallvec",
 ]
@@ -405,19 +347,10 @@ dependencies = [
  "nalgebra",
  "pdbtbx",
  "rayon",
- "rstar 0.12.0",
+ "rstar",
  "snafu",
 ]
 
-[[package]]
-name = "rustc_version"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
-dependencies = [
- "semver",
-]
-
 [[package]]
 name = "safe_arch"
 version = "0.7.1"
@@ -427,18 +360,6 @@ dependencies = [
  "bytemuck",
 ]
 
-[[package]]
-name = "scopeguard"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
-
-[[package]]
-name = "semver"
-version = "1.0.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b97ed7a9823b74f99c7742f5336af7be5ecd3eeafcb1507d1fa93347b1d589b0"
-
 [[package]]
 name = "serde"
 version = "1.0.196"
@@ -499,15 +420,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "spin"
-version = "0.9.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
-dependencies = [
- "lock_api",
-]
-
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
diff --git a/Cargo.toml b/Cargo.toml
index 810101c..8313180 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,12 +7,12 @@ readme = "README.md"
 repository = "https://github.com/maxall41/RustSASA"
 license = "MIT"
 license-file = "LICENSE"
-keywords = ["Rust","Bioinformatics","SASA"]
+keywords = ["Rust", "Bioinformatics", "SASA"]
 documentation = "https://docs.rs/rust-sasa/latest/rust_sasa/"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-pdbtbx = "0.11.0"
+pdbtbx = "0.12.0"
 rstar = "0.12.0"
 nalgebra = "0.33.0"
 rayon = "1.10.0"
diff --git a/src/lib.rs b/src/lib.rs
index dabbfb6..ccc0be2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -164,7 +164,6 @@ fn is_accessible_rstar(
 /// use rust_sasa::{Atom, calculate_sasa_internal};
 /// let (mut pdb, _errors) = pdbtbx::open(
 ///             "./example.cif",
-///             StrictnessLevel::Medium
 ///         ).unwrap();
 /// let mut atoms = vec![];
 /// for atom in pdb.atoms() {
@@ -231,7 +230,6 @@ pub fn calculate_sasa_internal(
 /// use rust_sasa::{Atom, calculate_sasa, calculate_sasa_internal, SASALevel};
 /// let (mut pdb, _errors) = pdbtbx::open(
 ///             "./example.cif",
-///             StrictnessLevel::Medium
 /// ).unwrap();
 /// let result = calculate_sasa(&pdb,None,None,SASALevel::Residue);
 /// ```
diff --git a/src/test.rs b/src/test.rs
index 9743366..ba01e4d 100644
--- a/src/test.rs
+++ b/src/test.rs
@@ -248,7 +248,7 @@ mod tests {
 
     #[test]
     fn internal_test() {
-        let (mut pdb, _errors) = pdbtbx::open("./example.cif", StrictnessLevel::Medium).unwrap();
+        let (mut pdb, _errors) = pdbtbx::open("./example.cif").unwrap();
         let mut atoms = vec![];
         for atom in pdb.atoms() {
             atoms.push(Atom {
@@ -275,7 +275,7 @@ mod tests {
     }
     #[test]
     fn external_test() {
-        let (mut pdb, _errors) = pdbtbx::open("./example.cif", StrictnessLevel::Medium).unwrap();
+        let (mut pdb, _errors) = pdbtbx::open("./example.cif").unwrap();
         let protein_sasa = calculate_sasa(&pdb, None, None, SASALevel::Protein).unwrap();
         let chain_sasa = calculate_sasa(&pdb, None, None, SASALevel::Chain).unwrap();