diff --git a/.tool-versions b/.tool-versions
index b067ea4..6c6e9bf 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-gleam 1.2.1
+gleam 1.4.1
 nodejs 19.7.0
 erlang 26.0.2
diff --git a/gleam.toml b/gleam.toml
index 200c469..fb5d7ae 100644
--- a/gleam.toml
+++ b/gleam.toml
@@ -24,7 +24,7 @@ internal_modules = [
 gleam = ">= 1.0.0"
 
 [dependencies]
-gleam_stdlib = "~> 0.38"
+gleam_stdlib = "~> 0.39"
 gleam_erlang = "~> 0.22"
 gleam_json = "~> 0.6"
 gleam_otp = "~> 0.7"
diff --git a/manifest.toml b/manifest.toml
index 9ffc4bf..c70ab03 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,8 +5,8 @@ packages = [
   { name = "gleam_erlang", version = "0.25.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleam_erlang", source = "hex", outer_checksum = "054D571A7092D2A9727B3E5D183B7507DAB0DA41556EC9133606F09C15497373" },
   { name = "gleam_json", version = "0.7.0", build_tools = ["gleam"], requirements = ["gleam_stdlib", "thoas"], otp_app = "gleam_json", source = "hex", outer_checksum = "CB405BD93A8828BCD870463DE29375E7B2D252D9D124C109E5B618AAC00B86FC" },
   { name = "gleam_otp", version = "0.10.0", build_tools = ["gleam"], requirements = ["gleam_erlang", "gleam_stdlib"], otp_app = "gleam_otp", source = "hex", outer_checksum = "0B04FE915ACECE539B317F9652CAADBBC0F000184D586AAAF2D94C100945D72B" },
-  { name = "gleam_stdlib", version = "0.38.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "663CF11861179AF415A625307447775C09404E752FF99A24E2057C835319F1BE" },
-  { name = "gleeunit", version = "1.1.2", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "72CDC3D3F719478F26C4E2C5FED3E657AC81EC14A47D2D2DEBB8693CA3220C3B" },
+  { name = "gleam_stdlib", version = "0.39.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "2D7DE885A6EA7F1D5015D1698920C9BAF7241102836CE0C3837A4F160128A9C4" },
+  { name = "gleeunit", version = "1.2.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "F7A7228925D3EE7D0813C922E062BFD6D7E9310F0BEE585D3A42F3307E3CFD13" },
   { name = "ids", version = "0.13.0", build_tools = ["gleam"], requirements = ["gleam_erlang", "gleam_otp", "gleam_stdlib"], otp_app = "ids", source = "hex", outer_checksum = "D59147A8E7D818FEBE5CA572859CC018D0ACEFA84F5CED7CE86EDBCC10622B21" },
   { name = "thoas", version = "0.4.1", build_tools = ["rebar3"], requirements = [], otp_app = "thoas", source = "hex", outer_checksum = "4918D50026C073C4AB1388437132C77A6F6F7C8AC43C60C13758CC0ADCE2134E" },
 ]
@@ -15,6 +15,6 @@ packages = [
 gleam_erlang = { version = "~> 0.22" }
 gleam_json = { version = "~> 0.6" }
 gleam_otp = { version = "~> 0.7" }
-gleam_stdlib = { version = "~> 0.38" }
+gleam_stdlib = { version = "~> 0.39" }
 gleeunit = { version = "~> 1.0" }
 ids = { version = "~> 0.10" }