diff --git a/.circleci/config.yml b/.circleci/config.yml
index b0c4c1c..055e24b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -13,50 +13,26 @@ jobs:
     parameters:
       go_version:
         type: string
-      os:
-        type: string
       run_test:
         type: boolean
         default: true
     docker:
     - image: cimg/go:<< parameters.go_version >>
-    environment:
-      GOOS: "<< parameters.os >>"
     steps:
     - checkout
     - run: make test
 
 workflows:
   version: 2
-  procfs:
+  unit-test:
     jobs:
     - compile
     - test:
-        name: test-linux
-        os: linux
-        matrix:
-          parameters:
-            go_version:
-            - "1.16"
-            - "1.17"
-            - "1.18"
-    - test:
-        name: test-freebsd
-        os: freebsd
-        run_test: false
-        matrix:
-          parameters:
-            go_version:
-            - "1.16"
-            - "1.17"
-            - "1.18"
-    - test:
-        name: test-windows
-        os: windows
-        run_test: false
+        name: testing
         matrix:
           parameters:
             go_version:
             - "1.16"
             - "1.17"
             - "1.18"
+            - "1.19"