diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index eecd06d47..54cdcdbbd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -45,7 +45,7 @@ on:
 
 env:
   # See vars.GO_VERSION field of https://github.com/arduino/arduino-cli/blob/master/DistTasks.yml
-  GO_VERSION: '1.19'
+  GO_VERSION: '1.21'
   # See: https://github.com/actions/setup-node/#readme
   NODE_VERSION: '18.17'
   JOB_TRANSFER_ARTIFACT: build-artifacts
diff --git a/.github/workflows/check-i18n-task.yml b/.github/workflows/check-i18n-task.yml
index ec80cad86..22426313a 100644
--- a/.github/workflows/check-i18n-task.yml
+++ b/.github/workflows/check-i18n-task.yml
@@ -2,7 +2,7 @@ name: Check Internationalization
 
 env:
   # See vars.GO_VERSION field of https://github.com/arduino/arduino-cli/blob/master/DistTasks.yml
-  GO_VERSION: '1.19'
+  GO_VERSION: '1.21'
 
 # See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows
 on:
diff --git a/.github/workflows/i18n-nightly-push.yml b/.github/workflows/i18n-nightly-push.yml
index 92e8b6eb0..6f401a526 100644
--- a/.github/workflows/i18n-nightly-push.yml
+++ b/.github/workflows/i18n-nightly-push.yml
@@ -2,7 +2,7 @@ name: i18n-nightly-push
 
 env:
   # See vars.GO_VERSION field of https://github.com/arduino/arduino-cli/blob/master/DistTasks.yml
-  GO_VERSION: '1.19'
+  GO_VERSION: '1.21'
 
 on:
   schedule:
diff --git a/.github/workflows/i18n-weekly-pull.yml b/.github/workflows/i18n-weekly-pull.yml
index 7f4c5d293..88157a7fa 100644
--- a/.github/workflows/i18n-weekly-pull.yml
+++ b/.github/workflows/i18n-weekly-pull.yml
@@ -2,7 +2,7 @@ name: i18n-weekly-pull
 
 env:
   # See vars.GO_VERSION field of https://github.com/arduino/arduino-cli/blob/master/DistTasks.yml
-  GO_VERSION: '1.19'
+  GO_VERSION: '1.21'
 
 on:
   schedule:
diff --git a/.github/workflows/themes-weekly-pull.yml b/.github/workflows/themes-weekly-pull.yml
index f9fcb446a..bd9f845c1 100644
--- a/.github/workflows/themes-weekly-pull.yml
+++ b/.github/workflows/themes-weekly-pull.yml
@@ -8,7 +8,7 @@ on:
 
 env:
   # See vars.GO_VERSION field of https://github.com/arduino/arduino-cli/blob/master/DistTasks.yml
-  GO_VERSION: '1.19'
+  GO_VERSION: '1.21'
   NODE_VERSION: '18.17'
 
 jobs: