diff --git a/tool/conda/singa/requirements.txt b/tool/conda/singa/requirements.txt
index aafc2789d..372f118c4 100644
--- a/tool/conda/singa/requirements.txt
+++ b/tool/conda/singa/requirements.txt
@@ -1,4 +1,4 @@
-swig==3.0.12
+swig==4.0.2
 openblas==0.3.9
 glog==0.3.5
 deprecated==1.2.7