diff --git a/Dockerfile b/Dockerfile
index a22b60eb..12508930 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # get golang container
-FROM golang:1.20.7
+FROM golang:1.21.0
 
 # get args
 ARG TibiaDataBuildBuilder=dockerfile
diff --git a/go.mod b/go.mod
index 630ed446..dd6c0909 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/TibiaData/tibiadata-api-go
 
-go 1.20
+go 1.21
 
 replace github.com/TibiaData/tibiadata-api-go/src/tibiamapping => ./src/tibiamapping
 
diff --git a/src/static/go.mod b/src/static/go.mod
index 9a6c5f00..85d6bde3 100644
--- a/src/static/go.mod
+++ b/src/static/go.mod
@@ -1,3 +1,3 @@
 module github.com/TibiaData/tibiadata-api-go/src/static
 
-go 1.20
+go 1.21
diff --git a/src/tibiamapping/go.mod b/src/tibiamapping/go.mod
index f345cdd9..61c011e6 100644
--- a/src/tibiamapping/go.mod
+++ b/src/tibiamapping/go.mod
@@ -1,6 +1,6 @@
 module github.com/TibiaData/tibiadata-api-go/src/tibiamapping
 
-go 1.20
+go 1.21
 
 require github.com/go-resty/resty/v2 v2.7.0
 
diff --git a/src/validation/go.mod b/src/validation/go.mod
index 40684360..1f617e80 100644
--- a/src/validation/go.mod
+++ b/src/validation/go.mod
@@ -1,6 +1,6 @@
 module github.com/TibiaData/tibiadata-api-go/src/validation
 
-go 1.20
+go 1.21
 
 replace github.com/TibiaData/tibiadata-api-go/src/tibiamapping => ../tibiamapping