diff --git a/grayskull/utils.py b/grayskull/utils.py
index 44dff95c0..365ce13b5 100644
--- a/grayskull/utils.py
+++ b/grayskull/utils.py
@@ -130,8 +130,13 @@ def rm_duplicated_deps(all_requirements: Union[list, set, None]) -> Optional[lis
         if dep.strip().startswith(("{{", "<{")):
             new_reqs[dep] = dep
             continue
-        dep_name = re_split.split(dep.strip())[0].strip()
+        dep_name, *constrains = re_split.split(dep.strip())
+        dep_name = dep_name.strip()
+        constrains = [
+            c.strip() for c in constrains if c.strip() not in {"*", "*.*", "*.*.*"}
+        ]
         canonicalized = dep_name.replace("_", "-").lower()
+        constrains.insert(0, dep_name)
         if canonicalized in new_reqs:
             # In order to break ties deterministically, we prioritize the requirement
             # which is alphanumerically lowest. This happens to prioritize the "-"
@@ -140,9 +145,9 @@ def rm_duplicated_deps(all_requirements: Union[list, set, None]) -> Optional[lis
             # keep "importlib-metadata" because it is alphabetically lower.
             previous_req = new_reqs[canonicalized]
             if len(dep) > len(previous_req) or "-" in dep_name:
-                new_reqs[canonicalized] = dep
+                new_reqs[canonicalized] = " ".join(constrains)
         else:
-            new_reqs[canonicalized] = dep
+            new_reqs[canonicalized] = " ".join(constrains)
     return list(new_reqs.values())
 
 
diff --git a/tests/test_utils.py b/tests/test_utils.py
index a08757915..575f101b8 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -125,3 +125,9 @@ def test_rm_duplicated_deps():
     assert rm_duplicated_deps([]) is None
     # my-crazy-pkg is preferred because "my-crazy-pkg" < "my_craZy-pkg":
     assert rm_duplicated_deps(["my_craZy-pkg", "my-crazy-pkg"]) == ["my-crazy-pkg"]
+
+
+def test_rm_dupliate_deps_with_star():
+    assert rm_duplicated_deps(["typing-extensions", "typing_extensions *"]) == [
+        "typing_extensions"
+    ]