diff --git a/docs/misc/changelog.rst b/docs/misc/changelog.rst
index 822a028..ed14c6b 100644
--- a/docs/misc/changelog.rst
+++ b/docs/misc/changelog.rst
@@ -27,6 +27,8 @@ Others:
 Documentation:
 ^^^^^^^^^^^^^^
 
+- updated QR-DQN docs checkmark typo (@minhlong94)
+
 
 Release 1.0 (2021-03-17)
 -------------------------------
@@ -126,4 +128,4 @@ Stable-Baselines3 is currently maintained by `Antonin Raffin`_ (aka `@araffin`_)
 Contributors:
 -------------
 
-@ku2482 @guyk1971
+@ku2482 @guyk1971 @minhlong94
diff --git a/docs/modules/qrdqn.rst b/docs/modules/qrdqn.rst
index 79940d1..1ae5a7b 100644
--- a/docs/modules/qrdqn.rst
+++ b/docs/modules/qrdqn.rst
@@ -40,10 +40,10 @@ Can I use?
 ============= ====== ===========
 Space         Action Observation
 ============= ====== ===========
-Discrete      ✔      ✔
-Box           ❌      ✔
-MultiDiscrete ❌      ✔
-MultiBinary   ❌      ✔
+Discrete      ✔️     ✔️
+Box           ❌     ✔️
+MultiDiscrete ❌     ✔️
+MultiBinary   ❌     ✔️
 Dict          ❌     ✔️
 ============= ====== ===========