diff --git a/Cargo.lock b/Cargo.lock
index 3af9fc5a..f5d4621a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1071,9 +1071,9 @@ dependencies = [
 
 [[package]]
 name = "zen-expression"
-version = "0.53.0"
+version = "0.55.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7948c672b89b5f6df93182e72277dbdd2745bf3ea6a8e88b6d93d97b1c0a994"
+checksum = "1510e0c05b502e2a88930f71e11ffe0581c874f0fe2191dea2c4a5253a165d32"
 dependencies = [
  "ahash 0.8.12",
  "anyhow",
@@ -1101,9 +1101,9 @@ dependencies = [
 
 [[package]]
 name = "zen-macros"
-version = "0.53.0"
+version = "0.55.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1577c88d5027ea74c66208a007c158882d2521908dd399aed88aaa23a677a445"
+checksum = "201058abd164116259059c2ee3af097b20201f9332e479c23eb1b458cab1e98f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1113,9 +1113,9 @@ dependencies = [
 
 [[package]]
 name = "zen-types"
-version = "0.53.0"
+version = "0.55.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddd12942fef33e4931a88c44cbaa048f07633df8adc55f6ceb197a368ee38982"
+checksum = "a055e1e78e1d22a1719d1a446b296bac7034c696d4c0b16ccfaf8b10a8479aea"
 dependencies = [
  "ahash 0.8.12",
  "nohash-hasher",
diff --git a/packages/zen-engine-wasm/Cargo.toml b/packages/zen-engine-wasm/Cargo.toml
index c535059f..1e2bb120 100644
--- a/packages/zen-engine-wasm/Cargo.toml
+++ b/packages/zen-engine-wasm/Cargo.toml
@@ -9,7 +9,7 @@ crate-type = ["cdylib"]
 
 [dependencies]
 bumpalo = "3"
-zen-expression = { version = "0.53.0", default-features = false, features = ["regex-lite"] }
+zen-expression = { version = "0.55.0", default-features = false, features = ["regex-lite"] }
 
 getrandom = { version = "0.3", features = ["wasm_js"] }
 fastrand = { version = "2", features = ["js"] }
diff --git a/packages/zen-engine-wasm/src/completion/function.rs b/packages/zen-engine-wasm/src/completion/function.rs
index 78b00057..cd120446 100644
--- a/packages/zen-engine-wasm/src/completion/function.rs
+++ b/packages/zen-engine-wasm/src/completion/function.rs
@@ -40,7 +40,9 @@ impl From<FunctionKind> for CompletionInfo {
                 InternalFunction::Type => m("Returns a string representing the data type of the value."),
                 InternalFunction::Keys => m("Returns an array of a given object's own enumerable property names."),
                 InternalFunction::Values => m("Returns an array of a given object's own enumerable property values."),
-                InternalFunction::Date => m("Returns a new date time instance.")
+                InternalFunction::Date => m("Returns a new date time instance."),
+                InternalFunction::Merge => m("Merges multiple objects into one."),
+                InternalFunction::MergeDeep => m("Deeply merges multiple objects into one."),
             },
             FunctionKind::Deprecated(d) => match d {
                 DeprecatedFunction::Date => m("Converts a numeric timestamp to a unix timestamp."),
@@ -110,6 +112,8 @@ impl From<FunctionKind> for CompletionParamNames {
                 InternalFunction::Keys => m(&["obj"]),
                 InternalFunction::Values => m(&["obj"]),
                 InternalFunction::Date => m(&["dateOrTimezone", "timezone"]),
+                InternalFunction::Merge => m(&["objects"]),
+                InternalFunction::MergeDeep => m(&["objects"]),
             },
             FunctionKind::Deprecated(d) => match d {
                 DeprecatedFunction::Date => m(&["timestamp"]),