diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 088b103..39060b3 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        go: [ '1.17', '1.16', '1.15' ]
+        go: [ '1.18', '1.17' ]
 
     steps:
       - uses: actions/checkout@v2
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        go: [ '1.17', '1.16', '1.15' ]
+        go: [ '1.18', '1.17' ]
 
     steps:
       - uses: actions/checkout@v2
@@ -61,7 +61,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        go: [ '1.17', '1.16', '1.15' ]
+        go: [ '1.18', '1.17' ]
 
     steps:
       - uses: actions/checkout@v2
@@ -85,7 +85,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        go: [ '1.17', '1.16', '1.15' ]
+        go: [ '1.18', '1.17' ]
 
     steps:
       - uses: actions/checkout@v2