diff --git a/.circleci/config.yml b/.circleci/config.yml
index ad4c411..e1c863e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -5,12 +5,12 @@ version: 2.1
 defaults: &defaults
   working_directory: ~/truemail-go
   docker:
-    - image: cimg/go:1.21.5
+    - image: cimg/go:1.22.0
 
 jobs:
   linters:
     docker:
-      - image: golangci/golangci-lint:v1.55.2-alpine
+      - image: golangci/golangci-lint:v1.56.2-alpine
 
     steps:
       - checkout
diff --git a/.tool-versions b/.tool-versions
index 3eaf48e..f526442 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-golang 1.21.5
+golang 1.22.0
diff --git a/README.md b/README.md
index 609aa4c..b256349 100644
--- a/README.md
+++ b/README.md
@@ -70,7 +70,7 @@ Email validation is a tricky thing. There are a number of different ways to vali
 
 ## Requirements
 
-Golang 1.21+
+Golang 1.22+
 
 ## Installation