diff --git a/luigi/execution_summary.py b/luigi/execution_summary.py
index 256f341b69..6a5ecf0fa3 100644
--- a/luigi/execution_summary.py
+++ b/luigi/execution_summary.py
@@ -382,7 +382,7 @@ def _summary_format(set_tasks, worker):
     if set_tasks["ever_failed"]:
         if not set_tasks["failed"]:
             smiley = ":)"
-            reason = "there were failed tasks but they all suceeded in a retry"
+            reason = "there were failed tasks but they all succeeded in a retry"
         else:
             smiley = ":("
             reason = "there were failed tasks"
diff --git a/test/execution_summary_test.py b/test/execution_summary_test.py
index 0d58fbb6ba..249782a04f 100644
--- a/test/execution_summary_test.py
+++ b/test/execution_summary_test.py
@@ -1116,4 +1116,4 @@ def complete(self):
         self.assertIn('Scheduled 1 task', s)
         self.assertIn('Luigi Execution Summary', s)
         self.assertNotIn('ever failed', s)
-        self.assertIn('\n\nThis progress looks :) because there were failed tasks but they all suceeded in a retry', s)
+        self.assertIn('\n\nThis progress looks :) because there were failed tasks but they all succeeded in a retry', s)
diff --git a/test/worker_keep_alive_test.py b/test/worker_keep_alive_test.py
index 0efcf0431d..1ae966ca17 100644
--- a/test/worker_keep_alive_test.py
+++ b/test/worker_keep_alive_test.py
@@ -107,7 +107,7 @@ def requires(self):
             # ... because in this case the only work remaining depends on DISABLED tasks,
             # hence it's not worth considering the wrapper task as a PENDING task to
             # keep the worker alive anymore.
-            self.assertFalse(Succeeder.did_run)  # It should never have run, it suceeded already
+            self.assertFalse(Succeeder.did_run)  # It should never have run, it succeeded already
         finally:
             self.sch.prune()  # This shouldnt be necessary in this version, but whatevs
             t.join(timeout=1)  # Wait 1 second