diff --git a/Cargo.lock b/Cargo.lock
index e6678c6..be8877f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -127,9 +127,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "bytes"
-version = "1.6.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "514de17de45fdb8dc022b1a7975556c53c86f9f0aa5f534b98977b171857c2c9"
+checksum = "8318a53db07bb3f8dca91a600466bdb3f2eaadeedfdbcf02e1accbad9271ba50"
 
 [[package]]
 name = "cc"
@@ -345,12 +345,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "foreign_vec"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee1b05cbd864bcaecbd3455d6d967862d446e4ebfc3c2e5e5b9841e53cba6673"
-
 [[package]]
 name = "getrandom"
 version = "0.2.15"
@@ -392,12 +386,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "heck"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
-
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -430,7 +418,7 @@ dependencies = [
  "iana-time-zone-haiku",
  "js-sys",
  "wasm-bindgen",
- "windows-core",
+ "windows-core 0.52.0",
 ]
 
 [[package]]
@@ -824,9 +812,9 @@ dependencies = [
 
 [[package]]
 name = "polars"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e3351ea4570e54cd556e6755b78fe7a2c85368d820c0307cca73c96e796a7ba"
+checksum = "ad002eb9c541b4f7e0c7c759cefe884a0350e15d241231ac4be31c5568c15070"
 dependencies = [
  "getrandom",
  "polars-arrow",
@@ -844,9 +832,9 @@ dependencies = [
 
 [[package]]
 name = "polars-arrow"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba65fc4bcabbd64fca01fd30e759f8b2043f0963c57619e331d4b534576c0b47"
+checksum = "32d19c6db79cb6a3c55af3b5a3976276edaab64cbf7f69b392617c2af30d7742"
 dependencies = [
  "ahash",
  "atoi",
@@ -858,7 +846,6 @@ dependencies = [
  "either",
  "ethnum",
  "fast-float",
- "foreign_vec",
  "getrandom",
  "hashbrown",
  "itoa",
@@ -866,6 +853,7 @@ dependencies = [
  "lz4",
  "multiversion",
  "num-traits",
+ "parking_lot",
  "polars-arrow-format",
  "polars-error",
  "polars-utils",
@@ -889,9 +877,9 @@ dependencies = [
 
 [[package]]
 name = "polars-compute"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f099516af30ac9ae4b4480f4ad02aa017d624f2f37b7a16ad4e9ba52f7e5269"
+checksum = "30194a5ff325f61d6fcb62dc215c9210f308fc4fc85a493ef777dbcd938cba24"
 dependencies = [
  "bytemuck",
  "either",
@@ -905,9 +893,9 @@ dependencies = [
 
 [[package]]
 name = "polars-core"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2439484be228b8c302328e2f953e64cfd93930636e5c7ceed90339ece7fef6c"
+checksum = "2ba2a3b736d55b92a12889672d0197dc25ad321ab23eba4168a3b6316a6b6349"
 dependencies = [
  "ahash",
  "bitflags",
@@ -937,9 +925,9 @@ dependencies = [
 
 [[package]]
 name = "polars-error"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c9b06dfbe79cabe50a7f0a90396864b5ee2c0e0f8d6a9353b2343c29c56e937"
+checksum = "07101d1803ca2046cdb3a8adb1523ddcc879229860f0ac56a853034269dec1e1"
 dependencies = [
  "polars-arrow-format",
  "regex",
@@ -949,9 +937,9 @@ dependencies = [
 
 [[package]]
 name = "polars-expr"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9c630385a56a867c410a20f30772d088f90ec3d004864562b84250b35268f97"
+checksum = "dd5c69634ddbb0f44186cd1c42d166963fc756f9cc994438e941bc2703ddbbab"
 dependencies = [
  "ahash",
  "bitflags",
@@ -969,9 +957,9 @@ dependencies = [
 
 [[package]]
 name = "polars-ffi"
-version = "0.41.1"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "daf2cb86f7c01523d95998760200836d98b49653172ee35fb871c4f301d85569"
+checksum = "121eb464d69f70284fa675f791e8a8fa5539efebb588ba9193ac90998c9c647c"
 dependencies = [
  "polars-arrow",
  "polars-core",
@@ -979,9 +967,9 @@ dependencies = [
 
 [[package]]
 name = "polars-io"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d7363cd14e4696a28b334a56bd11013ff49cc96064818ab3f91a126e453462d"
+checksum = "a48ddf416ae185336c3d7880d2e05b7e55686e3e0da1014e5e7325eff9c7d722"
 dependencies = [
  "ahash",
  "atoi_simd",
@@ -989,6 +977,7 @@ dependencies = [
  "chrono",
  "chrono-tz 0.8.6",
  "fast-float",
+ "glob",
  "home",
  "itoa",
  "memchr",
@@ -1011,9 +1000,9 @@ dependencies = [
 
 [[package]]
 name = "polars-json"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "543d7d3853f2c52dbfedee9ebf0d58c4ff3b92aadee5309150b2d14df49d6253"
+checksum = "f0a43388585a922524e8bbaa1ed1391c9c4b0768a644585609afa9a2fd5fc702"
 dependencies = [
  "ahash",
  "chrono",
@@ -1033,13 +1022,12 @@ dependencies = [
 
 [[package]]
 name = "polars-lazy"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03877e74e42b5340ae52ded705f6d5d14563d90554c9177b01b91ed2412a56ed"
+checksum = "a514a85df9e7d501c71c96f094861d0608b05a3f533447b1c0ea9cf714162fcb"
 dependencies = [
  "ahash",
  "bitflags",
- "glob",
  "memchr",
  "once_cell",
  "polars-arrow",
@@ -1059,10 +1047,11 @@ dependencies = [
 
 [[package]]
 name = "polars-mem-engine"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dea9e17771af750c94bf959885e4b3f5b14149576c62ef3ec1c9ef5827b2a30f"
+checksum = "2d057df81b17b4f0ea0e4424ee34f755e6b9ccfba432ecb2fe57dc4da6da2713"
 dependencies = [
+ "memmap2",
  "polars-arrow",
  "polars-core",
  "polars-error",
@@ -1077,9 +1066,9 @@ dependencies = [
 
 [[package]]
 name = "polars-ops"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6066552eb577d43b307027fb38096910b643ffb2c89a21628c7e41caf57848d0"
+checksum = "01ba44233249b7937491b5d2bdbf14e4ad534c0a65d06548c3bc418fc3e60791"
 dependencies = [
  "ahash",
  "argminmax",
@@ -1107,12 +1096,13 @@ dependencies = [
 
 [[package]]
 name = "polars-parquet"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b35b2592a2e7ef7ce9942dc2120dc4576142626c0e661668e4c6b805042e461"
+checksum = "bb2993265079ffa07dd16277189444424f8d787b00b01c6f6e001f58bab543ce"
 dependencies = [
  "ahash",
  "base64",
+ "bytemuck",
  "ethnum",
  "num-traits",
  "parquet-format-safe",
@@ -1126,9 +1116,9 @@ dependencies = [
 
 [[package]]
 name = "polars-pipe"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "021bce7768c330687d735340395a77453aa18dd70d57c184cbb302311e87c1b9"
+checksum = "0ccba94c4fa9fded0f41730f7649574c72d6d938a840731c7e4eea4e7ed5cecf"
 dependencies = [
  "crossbeam-channel",
  "crossbeam-queue",
@@ -1152,15 +1142,18 @@ dependencies = [
 
 [[package]]
 name = "polars-plan"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "220d0d7c02d1c4375802b2813dbedcd1a184df39c43b74689e729ede8d5c2921"
+checksum = "5d6b29cc53d6c086c09b11050b01c25c28f6a91339036ba1fb1250fcf0d89e74"
 dependencies = [
  "ahash",
+ "bitflags",
  "bytemuck",
+ "chrono",
  "chrono-tz 0.8.6",
  "either",
  "hashbrown",
+ "memmap2",
  "once_cell",
  "percent-encoding",
  "polars-arrow",
@@ -1179,9 +1172,9 @@ dependencies = [
 
 [[package]]
 name = "polars-row"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1d70d87a2882a64a43b431aea1329cb9a2c4100547c95c417cc426bb82408b3"
+checksum = "6e11f43f48466c4b1caa6dc61c381dc10c2d67b87fcb74bc996e21c4f7b0a311"
 dependencies = [
  "bytemuck",
  "polars-arrow",
@@ -1191,9 +1184,9 @@ dependencies = [
 
 [[package]]
 name = "polars-sql"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6fc1c9b778862f09f4a347f768dfdd3d0ba9957499d306d83c7103e0fa8dc5b"
+checksum = "6e9338806e7254618eb819cc632c34b75b71d462222a913f9c1035ed81911ddc"
 dependencies = [
  "hex",
  "once_cell",
@@ -1212,9 +1205,9 @@ dependencies = [
 
 [[package]]
 name = "polars-time"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "179f98313a15c0bfdbc8cc0f1d3076d08d567485b9952d46439f94fbc3085df5"
+checksum = "30a601ab9a62e733b8b560b37642321cb1933faa194864739f6a59d6dfc4d686"
 dependencies = [
  "atoi",
  "bytemuck",
@@ -1233,14 +1226,16 @@ dependencies = [
 
 [[package]]
 name = "polars-utils"
-version = "0.41.3"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53e6dd89fcccb1ec1a62f752c9a9f2d482a85e9255153f46efecc617b4996d50"
+checksum = "19dd73207bd15efb0ae5c9c3ece3227927ed6a16ad63578acec342378e6bdcb4"
 dependencies = [
  "ahash",
  "bytemuck",
+ "bytes",
  "hashbrown",
  "indexmap",
+ "memmap2",
  "num-traits",
  "once_cell",
  "polars-error",
@@ -1254,7 +1249,7 @@ dependencies = [
 
 [[package]]
 name = "polars_xdt"
-version = "0.15.1"
+version = "0.15.2"
 dependencies = [
  "chrono",
  "chrono-tz 0.9.0",
@@ -1305,15 +1300,15 @@ checksum = "1190fd18ae6ce9e137184f207593877e70f39b015040156b1e05081cdfe3733a"
 
 [[package]]
 name = "pyo3"
-version = "0.21.2"
+version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5e00b96a521718e08e03b1a622f01c8a8deb50719335de3f60b3b3950f069d8"
+checksum = "831e8e819a138c36e212f3af3fd9eeffed6bf1510a805af35b0edee5ffa59433"
 dependencies = [
  "cfg-if",
  "indoc",
  "libc",
  "memoffset",
- "parking_lot",
+ "once_cell",
  "portable-atomic",
  "pyo3-build-config",
  "pyo3-ffi",
@@ -1323,9 +1318,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.21.2"
+version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7883df5835fafdad87c0d888b266c8ec0f4c9ca48a5bed6bbb592e8dedee1b50"
+checksum = "1e8730e591b14492a8945cdff32f089250b05f5accecf74aeddf9e8272ce1fa8"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -1333,9 +1328,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.21.2"
+version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01be5843dc60b916ab4dad1dca6d20b9b4e6ddc8e15f50c47fe6d85f1fb97403"
+checksum = "5e97e919d2df92eb88ca80a037969f44e5e70356559654962cbb3316d00300c6"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -1343,9 +1338,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.21.2"
+version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77b34069fc0682e11b31dbd10321cbf94808394c56fd996796ce45217dfac53c"
+checksum = "eb57983022ad41f9e683a599f2fd13c3664d7063a3ac5714cae4b7bee7d3f206"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -1355,11 +1350,11 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.21.2"
+version = "0.22.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08260721f32db5e1a5beae69a55553f56b99bd0e1c3e6e0a5e8851a9d0f5a85c"
+checksum = "ec480c0c51ddec81019531705acac51bcdbeae563557c982aa8263bb96880372"
 dependencies = [
- "heck 0.4.1",
+ "heck",
  "proc-macro2",
  "pyo3-build-config",
  "quote",
@@ -1368,10 +1363,12 @@ dependencies = [
 
 [[package]]
 name = "pyo3-polars"
-version = "0.15.0"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "910d4952410bded2d87e13d48ca8e59b7fe028b07d29deaffd4539b3d906e75f"
+checksum = "5ffa7f0af4fb0ec561a736c75f4090938dc4c6c01ea235fc70b97fc5512d5688"
 dependencies = [
+ "libc",
+ "once_cell",
  "polars",
  "polars-core",
  "polars-ffi",
@@ -1385,9 +1382,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-polars-derive"
-version = "0.9.0"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62b6ee1fa8425af0d3ec588cba614fc2f3fd8e4838fb74f38987e697196884fe"
+checksum = "8ec018e2563ba4e42b7311c84b10da132c10a56bf91bd2cddd45ffb985becb9c"
 dependencies = [
  "polars-core",
  "polars-ffi",
@@ -1664,9 +1661,9 @@ dependencies = [
 
 [[package]]
 name = "sqlparser"
-version = "0.47.0"
+version = "0.49.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "295e9930cd7a97e58ca2a070541a3ca502b17f5d1fa7157376d0fabd85324f25"
+checksum = "a4a404d0e14905361b918cb8afdb73605e25c1d5029312bd9785142dcb3aa49e"
 dependencies = [
  "log",
 ]
@@ -1723,7 +1720,7 @@ version = "0.26.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
 dependencies = [
- "heck 0.5.0",
+ "heck",
  "proc-macro2",
  "quote",
  "rustversion",
@@ -1754,15 +1751,14 @@ dependencies = [
 
 [[package]]
 name = "sysinfo"
-version = "0.30.12"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "732ffa00f53e6b2af46208fba5718d9662a421049204e156328b66791ffa15ae"
+checksum = "d4115055da5f572fff541dd0c4e61b0262977f453cc9fe04be83aba25a89bdab"
 dependencies = [
- "cfg-if",
  "core-foundation-sys",
  "libc",
+ "memchr",
  "ntapi",
- "once_cell",
  "windows",
 ]
 
@@ -1942,11 +1938,11 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "windows"
-version = "0.52.0"
+version = "0.57.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e48a53791691ab099e5e2ad123536d0fff50652600abaf43bbf952894110d0be"
+checksum = "12342cb4d8e3b046f3d80effd474a7a02447231330ef77d71daa6fbc40681143"
 dependencies = [
- "windows-core",
+ "windows-core 0.57.0",
  "windows-targets",
 ]
 
@@ -1959,6 +1955,49 @@ dependencies = [
  "windows-targets",
 ]
 
+[[package]]
+name = "windows-core"
+version = "0.57.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2ed2439a290666cd67ecce2b0ffaad89c2a56b976b736e6ece670297897832d"
+dependencies = [
+ "windows-implement",
+ "windows-interface",
+ "windows-result",
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-implement"
+version = "0.57.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9107ddc059d5b6fbfbffdfa7a7fe3e22a226def0b2608f72e9d552763d3e1ad7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+]
+
+[[package]]
+name = "windows-interface"
+version = "0.57.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29bee4b38ea3cde66011baa44dba677c432a78593e202392d1e9070cf2a7fca7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.68",
+]
+
+[[package]]
+name = "windows-result"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e383302e8ec8515204254685643de10811af0ed97ea37210dc26fb0032647f8"
+dependencies = [
+ "windows-targets",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
diff --git a/Cargo.toml b/Cargo.toml
index 58ad7b5..e391d0f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "polars_xdt"
-version = "0.15.2"
+version = "0.15.3"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -9,14 +9,14 @@ name = "polars_xdt"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.21.2", features = ["extension-module", "abi3-py38"] }
-pyo3-polars = { version = "0.15.0", features = ["derive"] }
+pyo3 = { version = "0.22.2", features = ["extension-module", "abi3-py38"] }
+pyo3-polars = { version = "0.16.0", features = ["derive"] }
 serde = { version = "1", features = ["derive"] }
 chrono = { version = "0.4.38", default-features = false, features = ["std", "unstable-locales"] } 
 chrono-tz = "0.9.0"
-polars = { version = "0.41.3", features = ["strings", "timezones"]}
-polars-ops = { version = "0.41.3", default-features = false }
-polars-arrow = { version = "0.41.3", default-features = false }
+polars = { version = "0.42.0", features = ["strings", "timezones"]}
+polars-ops = { version = "0.42.0", default-features = false }
+polars-arrow = { version = "0.42.0", default-features = false }
 
 [target.'cfg(target_os = "linux")'.dependencies]
 jemallocator = { version = "0.5", features = ["disable_initial_exec_tls"] }
diff --git a/polars_xdt/functions.py b/polars_xdt/functions.py
index ecf0a31..6efcf04 100644
--- a/polars_xdt/functions.py
+++ b/polars_xdt/functions.py
@@ -16,7 +16,7 @@
 if TYPE_CHECKING:
     from datetime import date
 
-    from polars.type_aliases import IntoExpr
+    from polars_xdt.typing import IntoExpr
 
 RollStrategy: TypeAlias = Literal["raise", "forward", "backward"]
 
diff --git a/polars_xdt/typing.py b/polars_xdt/typing.py
new file mode 100644
index 0000000..2581250
--- /dev/null
+++ b/polars_xdt/typing.py
@@ -0,0 +1,15 @@
+from typing import TYPE_CHECKING, Union
+
+if TYPE_CHECKING:
+    import sys
+
+    import polars as pl
+
+    if sys.version_info >= (3, 10):
+        from typing import TypeAlias
+    else:
+        from typing_extensions import TypeAlias
+    from polars.datatypes import DataType, DataTypeClass
+
+    IntoExpr: TypeAlias = Union[pl.Expr, str, pl.Series]
+    PolarsDataType: TypeAlias = Union[DataType, DataTypeClass]
diff --git a/src/expressions.rs b/src/expressions.rs
index e9e8b8e..aa9a5fc 100644
--- a/src/expressions.rs
+++ b/src/expressions.rs
@@ -115,12 +115,8 @@ fn dst_offset(inputs: &[Series]) -> PolarsResult<Series> {
     }
 }
 
-fn list_idx_dtype(input_fields: &[Field]) -> PolarsResult<Field> {
-    let field = Field::new(input_fields[0].name(), DataType::List(Box::new(IDX_DTYPE)));
-    Ok(field.clone())
-}
-
-#[polars_expr(output_type_func=list_idx_dtype)]
+// todo: can we make this bigidx-dependent?
+#[polars_expr(output_type=UInt32)]
 fn arg_previous_greater(inputs: &[Series]) -> PolarsResult<Series> {
     let ser = &inputs[0];
     match ser.dtype() {
diff --git a/src/lib.rs b/src/lib.rs
index f7995d7..faa0c37 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,7 +6,7 @@ mod timezone;
 mod to_julian;
 mod utc_offsets;
 
-use pyo3::types::PyModule;
+use pyo3::types::{PyModule, PyModuleMethods};
 use pyo3::{pymodule, Bound, PyResult};
 
 #[cfg(target_os = "linux")]