diff --git a/.travis.yml b/.travis.yml
index 4cfe98c..1703556 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,16 +4,13 @@ os:
 language: go
 
 go:
-  - 1.11.x
+  - 1.15.x
 
 env:
   global:
     - GOTFLAGS="-race"
-  matrix:
-    - BUILD_DEPTYPE=gx
     - BUILD_DEPTYPE=gomod
 
-
 # disable travis install
 install:
   - true
@@ -24,7 +21,6 @@ script:
 
 cache:
   directories:
-    - $GOPATH/src/gx
     - $GOPATH/pkg/mod
     - $HOME/.cache/go-build