diff --git a/TECHNICAL_DETAILS.md b/TECHNICAL_DETAILS.md
index 85f1854940f2e4a41245ef80f2f39dbe3879f195..7e117dc6e2ede5d26f47b724f37d88ed92a51ac4 100644
--- a/TECHNICAL_DETAILS.md
+++ b/TECHNICAL_DETAILS.md
@@ -46,7 +46,7 @@ FPN structure in [Path Aggregation Network for Instance Segmentation](https://ar
                     end_level=-1,
                     add_extra_convs=False):
             pass
-        
+
         def forward(self, inputs):
             # implementation is ignored
             pass