diff --git a/CHANGELOG.md b/CHANGELOG.md
index 680cbd0..047b9ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v1.0.1 - 2023-12-19
+
+- Updated for Gleam v0.33.0.
+
 ## v1.0.0 - 2023-08-06
 
 - Updated for Gleam v0.32.0.
diff --git a/gleam.toml b/gleam.toml
index 5ed40ee..bd78276 100644
--- a/gleam.toml
+++ b/gleam.toml
@@ -1,5 +1,5 @@
 name = "gleeunit"
-version = "1.0.0"
+version = "1.0.1"
 licences = ["Apache-2.0"]
 description = "Gleam bindings to Erlang's EUnit test framework"
 gleam = ">= 0.32.0"
diff --git a/manifest.toml b/manifest.toml
index 04ba09d..6b1363a 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -2,7 +2,7 @@
 # You typically do not need to edit this file
 
 packages = [
-  { name = "gleam_stdlib", version = "0.32.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "07D64C26D014CF570F8ACADCE602761EA2E74C842D26F2FD49B0D61973D9966F" },
+  { name = "gleam_stdlib", version = "0.34.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "1FB8454D2991E9B4C0C804544D8A9AD0F6184725E20D63C3155F0AEB4230B016" },
 ]
 
 [requirements]
diff --git a/src/gleeunit/should.gleam b/src/gleeunit/should.gleam
index c393c23..9dd2032 100644
--- a/src/gleeunit/should.gleam
+++ b/src/gleeunit/should.gleam
@@ -4,74 +4,55 @@
 //// More information on running eunit can be found in [the rebar3
 //// documentation](https://rebar3.org/docs/testing/eunit/).
 
-@target(erlang)
-@external(erlang, "gleeunit_ffi", "should_equal")
-pub fn equal(a: a, b: a) -> Nil
 
-@target(erlang)
-@external(erlang, "gleeunit_ffi", "should_not_equal")
-pub fn not_equal(a: a, b: a) -> Nil
 
-@target(erlang)
-@external(erlang, "gleeunit_ffi", "should_be_ok")
-pub fn be_ok(a: Result(a, b)) -> a
 
-@target(erlang)
-@external(erlang, "gleeunit_ffi", "should_be_error")
-pub fn be_error(a: Result(a, b)) -> b
 
-@target(javascript)
 import gleam/string
 
-@target(javascript)
-@external(javascript, "../gleam.mjs", "inspect")
-fn stringify(a: anything) -> String
 
-@target(javascript)
-@external(javascript, "../gleeunit_ffi.mjs", "crash")
-fn crash(a: String) -> anything
 
-@target(javascript)
-pub fn equal(a, b) {
+@external(erlang, "gleeunit_ffi", "should_equal")
+pub fn equal(a: t, b: t) -> Nil {
   case a == b {
     True -> Nil
     _ ->
-      crash(string.concat([
+      panic as string.concat([
         "\n\t",
-        stringify(a),
+        string.inspect(a),
         "\n\tshould equal \n\t",
-        stringify(b),
-      ]))
+        string.inspect(b),
+      ])
   }
 }
 
-@target(javascript)
-pub fn not_equal(a, b) {
+@external(erlang, "gleeunit_ffi", "should_not_equal")
+pub fn not_equal(a: t, b: t) -> Nil {
   case a != b {
     True -> Nil
     _ ->
-      crash(string.concat([
+      panic as string.concat([
         "\n",
-        stringify(a),
+        string.inspect(a),
         "\nshould not equal \n",
-        stringify(b),
-      ]))
+        string.inspect(b),
+      ])
   }
 }
 
-@target(javascript)
-pub fn be_ok(a) {
+@external(erlang, "gleeunit_ffi", "should_be_ok")
+pub fn be_ok(a: Result(a, e)) -> a {
   case a {
     Ok(value) -> value
-    _ -> crash(string.concat(["\n", stringify(a), "\nshould be ok"]))
+    _ -> panic as string.concat(["\n", string.inspect(a), "\nshould be ok"])
   }
 }
 
-@target(javascript)
-pub fn be_error(a) {
+@external(erlang, "gleeunit_ffi", "should_be_error")
+pub fn be_error(a: Result(a, e)) -> e {
   case a {
     Error(error) -> error
-    _ -> crash(string.concat(["\n", stringify(a), "\nshould be error"]))
+    _ -> panic as string.concat(["\n", string.inspect(a), "\nshould be error"])
   }
 }