diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ffefab4..cf9720e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,10 +14,8 @@ jobs:
         os:
         - Windows-2019
         - Windows-2022
-        - macOS-10.15
         - macOS-11
         - macOS-12
-        - Ubuntu-18.04
         - Ubuntu-20.04
         - Ubuntu-22.04
         nodejs:
diff --git a/.github/workflows/verify-on-container-alpine.yml b/.github/workflows/verify-on-container-alpine.yml
index 0321029..8b103b1 100644
--- a/.github/workflows/verify-on-container-alpine.yml
+++ b/.github/workflows/verify-on-container-alpine.yml
@@ -11,7 +11,6 @@ jobs:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-18.04
         - ubuntu-20.04
         - ubuntu-22.04
         docker_image:
diff --git a/.github/workflows/verify-on-container-centos.yml b/.github/workflows/verify-on-container-centos.yml
index 9d1df6a..37c9e4d 100644
--- a/.github/workflows/verify-on-container-centos.yml
+++ b/.github/workflows/verify-on-container-centos.yml
@@ -11,7 +11,6 @@ jobs:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-18.04
         - ubuntu-20.04
         - ubuntu-22.04
         docker_image:
diff --git a/.github/workflows/verify-on-container-ubuntu.yml b/.github/workflows/verify-on-container-ubuntu.yml
index 43e0598..521e4b5 100644
--- a/.github/workflows/verify-on-container-ubuntu.yml
+++ b/.github/workflows/verify-on-container-ubuntu.yml
@@ -11,7 +11,6 @@ jobs:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-18.04
         - ubuntu-20.04
         - ubuntu-22.04
         docker_image:
diff --git a/.github/workflows/verify-on-macos.yml b/.github/workflows/verify-on-macos.yml
index 63a3150..ce04bc9 100644
--- a/.github/workflows/verify-on-macos.yml
+++ b/.github/workflows/verify-on-macos.yml
@@ -11,7 +11,6 @@ jobs:
       fail-fast: false
       matrix:
         os:
-        - macos-10.15
         - macos-11
         - macos-12
     uses: "./.github/workflows/reusable-verify.yml"
diff --git a/.github/workflows/verify-on-ubuntu.yml b/.github/workflows/verify-on-ubuntu.yml
index 850eca3..46f7c78 100644
--- a/.github/workflows/verify-on-ubuntu.yml
+++ b/.github/workflows/verify-on-ubuntu.yml
@@ -11,7 +11,6 @@ jobs:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-18.04
         - ubuntu-20.04
         - ubuntu-22.04
     uses: "./.github/workflows/reusable-verify.yml"