diff --git a/lib/archethic/contracts/interpreter/legacy.ex b/lib/archethic/contracts/interpreter/legacy.ex
index cbb47f89a..49979877c 100644
--- a/lib/archethic/contracts/interpreter/legacy.ex
+++ b/lib/archethic/contracts/interpreter/legacy.ex
@@ -66,21 +66,22 @@ defmodule Archethic.Contracts.Interpreter.Legacy do
               address: nil,
               authorized_keys: nil,
               code: nil,
-              content: {
-                :>,
-                [line: 11],
+              content: {:>, [line: 11],
                 [
-                  {
-                    :==,
-                    [line: 11],
-                    [
-                      {:get_in, [line: 11], [{:scope, [line: 11], nil}, ["transaction", "content"]]},
-                      {{:., [line: 11], [{:__aliases__, [alias: Archethic.Contracts.Interpreter.Legacy.Library], [:Library]}, :json_path_extract]}, [line: 11], [{:get_in, [line: 11], [{:scope, [line: 11], nil}, ["transaction", "content"]]}, "$.uco.eur"]}
-                    ]
-                  },
-                  1
-                ]
-              },
+                {{:., [line: 11],
+                  [
+                    {:__aliases__,
+                    [alias: Archethic.Contracts.Interpreter.Legacy.Library],
+                    [:Library]},
+                    :json_path_extract
+                  ]}, [line: 11],
+                [
+                  {:get_in, [line: 11],
+                    [{:scope, [line: 11], nil}, ["transaction", "content"]]},
+                  "$.uco.eur"
+                ]},
+                1
+                ]},
               origin_family: :all,
               previous_public_key: nil,
               secrets: nil,
diff --git a/lib/archethic/contracts/interpreter/legacy/condition_interpreter.ex b/lib/archethic/contracts/interpreter/legacy/condition_interpreter.ex
index 192039037..265d2a37f 100644
--- a/lib/archethic/contracts/interpreter/legacy/condition_interpreter.ex
+++ b/lib/archethic/contracts/interpreter/legacy/condition_interpreter.ex
@@ -476,7 +476,7 @@ defmodule Archethic.Contracts.Interpreter.Legacy.ConditionInterpreter do
 
   # Flatten comparison operations
   defp to_boolean_expression({op, _, [{:==, metadata, [{:get_in, _, _}, comp_a]}, comp_b]}, _, _)
-       when op in [:==, :>=, :<=] do
+       when op in [:==, :>=, :<=, :>, :<] do
     {op, metadata, [comp_a, comp_b]}
   end
 
diff --git a/test/archethic/contracts/interpreter/legacy/condition_interpreter_test.exs b/test/archethic/contracts/interpreter/legacy/condition_interpreter_test.exs
index cc92efe27..89753e1cb 100644
--- a/test/archethic/contracts/interpreter/legacy/condition_interpreter_test.exs
+++ b/test/archethic/contracts/interpreter/legacy/condition_interpreter_test.exs
@@ -364,5 +364,57 @@ defmodule Archethic.Contracts.Interpreter.Legacy.ConditionInterpreterTest do
                }
              })
     end
+
+    test "should validate condition on uco_transfers size" do
+      address = <<0::8, 0::8, :crypto.strong_rand_bytes(32)::binary>>
+
+      assert Interpreter.sanitize_code(~s"""
+             condition transaction: [
+               uco_transfers: size() < 10
+             ]
+             """)
+             |> elem(1)
+             |> ConditionInterpreter.parse()
+             |> elem(2)
+             |> ConditionInterpreter.valid_conditions?(%{
+               "transaction" => %{
+                 "uco_transfers" => %{"#{address}" => 12}
+               }
+             })
+    end
+
+    test "should invalidate condition on uco_transfers size" do
+      address = <<0::8, 0::8, :crypto.strong_rand_bytes(32)::binary>>
+
+      refute Interpreter.sanitize_code(~s"""
+             condition transaction: [
+               uco_transfers: size() > 10
+             ]
+             """)
+             |> elem(1)
+             |> ConditionInterpreter.parse()
+             |> elem(2)
+             |> ConditionInterpreter.valid_conditions?(%{
+               "transaction" => %{
+                 "uco_transfers" => %{"#{address}" => 12}
+               }
+             })
+    end
+
+    test "should validate oracle condition" do
+      assert Interpreter.sanitize_code(~s"""
+             condition oracle: [
+               content: json_path_extract(\"$.uco.eur\") > 1
+             ]
+             """)
+             |> elem(1)
+             |> ConditionInterpreter.parse()
+             |> elem(2)
+             |> ConditionInterpreter.valid_conditions?(%{
+               "transaction" => %{
+                 "content" => Jason.encode!(%{uco: %{eur: 2}})
+               }
+             })
+    end
   end
 end