diff --git a/Cargo.lock b/Cargo.lock
index 51c5432..e2f1094 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -73,6 +73,12 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.102"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
+
 [[package]]
 name = "approx"
 version = "0.5.1"
@@ -920,7 +926,7 @@ version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "219cb19e96be00ab2e37d6e299658a0cfa83e52429179969b0f0121b4ac46983"
 dependencies = [
- "toml_edit",
+ "toml_edit 0.23.10+spec-1.0.0",
 ]
 
 [[package]]
@@ -932,6 +938,29 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "prost"
+version = "0.12.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "deb1435c188b76130da55f17a466d252ff7b1418b2ad3e037d127b94e3411f29"
+dependencies = [
+ "bytes",
+ "prost-derive",
+]
+
+[[package]]
+name = "prost-derive"
+version = "0.12.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81bddcdb20abf9501610992b6759a4c888aef7d1a7247ef75e2404275ac24af1"
+dependencies = [
+ "anyhow",
+ "itertools 0.11.0",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "psm"
 version = "0.1.25"
@@ -1209,6 +1238,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "0.6.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf41e0cfaf7226dca15e8197172c295a782857fcb97fad1808a166870dee75a3"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_stacker"
 version = "0.1.11"
@@ -1390,6 +1428,27 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "toml"
+version = "0.8.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc1beb996b9d83529a9e75c17a1686767d148d70663143c7854d8b4a09ced362"
+dependencies = [
+ "serde",
+ "serde_spanned",
+ "toml_datetime 0.6.11",
+ "toml_edit 0.22.27",
+]
+
+[[package]]
+name = "toml_datetime"
+version = "0.6.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22cddaf88f4fbc13c51aebbf5f8eceb5c7c5a9da2ac40a13519eb5b0a0e8f11c"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "toml_datetime"
 version = "0.7.5+spec-1.1.0"
@@ -1399,6 +1458,20 @@ dependencies = [
  "serde_core",
 ]
 
+[[package]]
+name = "toml_edit"
+version = "0.22.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41fe8c660ae4257887cf66394862d21dbca4a6ddd26f04a3560410406a2f819a"
+dependencies = [
+ "indexmap",
+ "serde",
+ "serde_spanned",
+ "toml_datetime 0.6.11",
+ "toml_write",
+ "winnow",
+]
+
 [[package]]
 name = "toml_edit"
 version = "0.23.10+spec-1.0.0"
@@ -1406,7 +1479,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84c8b9f757e028cee9fa244aea147aab2a9ec09d5325a9b01e0a49730c2b5269"
 dependencies = [
  "indexmap",
- "toml_datetime",
+ "toml_datetime 0.7.5+spec-1.1.0",
  "toml_parser",
  "winnow",
 ]
@@ -1420,9 +1493,15 @@ dependencies = [
  "winnow",
 ]
 
+[[package]]
+name = "toml_write"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d99f8c9a7727884afe522e9bd5edbfc91a3312b36a77b5fb8926e4c31a41801"
+
 [[package]]
 name = "topstitch"
-version = "0.95.0"
+version = "0.95.1"
 dependencies = [
  "cargo_metadata",
  "curl",
@@ -1443,7 +1522,7 @@ dependencies = [
  "serde_json",
  "slang-rs",
  "tempfile",
- "toml",
+ "toml 0.5.11",
  "xlsynth",
 ]
 
@@ -1695,26 +1774,31 @@ dependencies = [
 
 [[package]]
 name = "xlsynth"
-version = "0.19.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "065c15a6990e52781739c415cfe15b7809f1f8ec9f8c97e4b90ff425a9fa3c41"
+version = "0.39.0"
+source = "git+https://github.com/xlsynth/xlsynth-crate.git?rev=bc173bd70d5526095058a6c5076252f2192f75ea#bc173bd70d5526095058a6c5076252f2192f75ea"
 dependencies = [
  "cargo_metadata",
+ "cc",
+ "libc",
  "log",
+ "prost",
  "regex",
+ "serde",
+ "thiserror",
+ "toml 0.8.23",
  "xlsynth-sys",
 ]
 
 [[package]]
 name = "xlsynth-sys"
-version = "0.19.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9c90f74967f16628ce0b88b6f3cd9eced4d31ef852a316e21ac4721de64707e"
+version = "0.39.0"
+source = "git+https://github.com/xlsynth/xlsynth-crate.git?rev=bc173bd70d5526095058a6c5076252f2192f75ea#bc173bd70d5526095058a6c5076252f2192f75ea"
 dependencies = [
  "flate2",
  "libc",
  "sha2",
  "tar",
+ "toml 0.8.23",
  "ureq",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 289f83e..b67b282 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "topstitch"
-version = "0.95.0"
+version = "0.95.1"
 edition = "2024"
 license = "Apache-2.0"
 description = "Stitch together Verilog modules with Rust"
@@ -11,7 +11,7 @@ documentation = "https://docs.rs/topstitch"
 [dependencies]
 num-bigint = "0.4.3"
 indexmap = "2.5.0"
-xlsynth = "0.19.0"
+xlsynth = { git = "https://github.com/xlsynth/xlsynth-crate.git", rev = "bc173bd70d5526095058a6c5076252f2192f75ea", version = "0.39.0" }
 slang-rs = "0.21.0"
 itertools = "0.10"
 regex = "1.11.0"