diff --git a/pyproject.toml b/pyproject.toml
index 90f89275..75b0cbd7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,13 +31,14 @@ classifiers = [
   "Topic :: Software Development :: Libraries"
 ]
 dependencies = [
-  # 0.11.1 is the floor because it is the first release carrying the EXPR/
-  # WRAP_ACTIONS model surface this package uses: FormatString.resolve_value and
-  # .whole_field_expression, evaluate_let_bindings, CancelationMethodDeferred,
-  # SymbolTable.expr_host_rules, and `let` on StepTemplate/StepScript. 0.11.0 has
-  # only StepTemplate.let, StepScript.let and SymbolTable.expr_types, so this
-  # package fails at import against it.
-  "openjd-model >= 0.11.2,< 0.12",
+  # 0.11.4 is the floor because it is the first release whose SerializedSymbolTable
+  # has a JSON transport form (to_json_str/from_json_str), which is how a caller
+  # gets a table across a process boundary and into the v1 Session's
+  # `resolved_symtab`. Do not drop below 0.11.2: the EXPR/WRAP_ACTIONS model
+  # surface this package imports (FormatString.whole_field_expression,
+  # evaluate_let_bindings, CancelationMethodDeferred, SymbolTable.expr_host_rules,
+  # `let` on StepTemplate/StepScript) does not exist before then.
+  "openjd-model >= 0.11.4,< 0.12",
   "pywin32 >= 307; platform_system == 'Windows'",
   "psutil >= 5.9,< 7.3; platform_system == 'Windows'",
 ]