diff --git a/Cargo.lock b/Cargo.lock
index 132bfdee9..4b0753fc0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1017,10 +1017,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
 dependencies = [
  "cfg-if",
- "js-sys",
  "libc",
  "wasi 0.11.0+wasi-snapshot-preview1",
- "wasm-bindgen",
 ]
 
 [[package]]
@@ -1452,9 +1450,9 @@ dependencies = [
 
 [[package]]
 name = "julian_day_converter"
-version = "0.3.4"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e5c45e06fa273ed7800f954d1cb6054b9b07115b370da56185f506700c0e3aa"
+checksum = "1aa5652b85ab018289638c6b924db618da9edd2ddfff7fa0ec38a8b51a9192d3"
 dependencies = [
  "chrono",
 ]
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 3e6a3009b..29d67ec23 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -49,11 +49,12 @@ libc = "0.2.155"
 log = "0.4.20"
 sqlite3-parser = { path = "../vendored/sqlite3-parser" }
 thiserror = "1.0.61"
-getrandom = { version = "0.2.15", features = ["js"] }
+getrandom = { version = "0.2.15" }
 regex = "1.11.1"
 regex-syntax = { version = "0.8.5", default-features = false, features = ["unicode"] }
-chrono = "0.4.38"
 julian_day_converter = "0.3.2"
+chrono = { version = "0.4.38", default-features = false, features = ["clock"] }
+julian_day_converter = "0.4.4"
 jsonb = { version = "0.4.4", optional = true }
 indexmap = { version = "2.2.6", features = ["serde"] }
 serde = { version = "1.0", features = ["derive"] }
@@ -75,7 +76,7 @@ crossbeam-skiplist = "0.1.3"
 ryu = "1.0.19"
 
 [build-dependencies]
-chrono = "0.4.38"
+chrono = { version = "0.4.38", default-features = false }
 built = { version = "0.7.5", features = ["git2", "chrono"] }
 
 [target.'cfg(not(target_family = "windows"))'.dev-dependencies]
diff --git a/core/functions/datetime.rs b/core/functions/datetime.rs
index aeac63337..9a65bcb2f 100644
--- a/core/functions/datetime.rs
+++ b/core/functions/datetime.rs
@@ -1536,11 +1536,13 @@ mod tests {
     #[allow(deprecated)]
     #[test]
     fn test_apply_modifier_julianday() {
+        use julian_day_converter::*;
+
         let dt = create_datetime(2000, 1, 1, 12, 0, 0);
-        let julian_day = julian_day_converter::datetime_to_julian_day(&dt.to_string()).unwrap();
+        let julian_day = &dt.to_jd();
         let mut dt_result = NaiveDateTime::default();
-        if let Ok(result) = julian_day_converter::julian_day_to_datetime(julian_day) {
-            dt_result = result;
+        if let Some(ndt) = JulianDay::from_jd(*julian_day) {
+            dt_result = ndt;
         }
         assert_eq!(dt_result, dt);
     }