diff --git a/sem-version b/sem-version
index feb7a707..36a51bd4 100755
--- a/sem-version
+++ b/sem-version
@@ -47,6 +47,7 @@ version::change_ruby() {
   [[ "$software_version" == "3.1" ]] && software_version="3.1.6"
   [[ "$software_version" == "3.2" ]] && software_version="3.2.6"
   [[ "$software_version" == "3.3" ]] && software_version="3.3.6"
+  [[ "$software_version" == "3.4" ]] && software_version="3.4.1"
 
   if ! [ -d ~/.rbenv/versions/"${software_version}" ]; then
     sem-install ruby "${software_version}"
diff --git a/tests/sem_version_focal/ruby.bats b/tests/sem_version_focal/ruby.bats
index 65cdf8cb..5eeb8654 100644
--- a/tests/sem_version_focal/ruby.bats
+++ b/tests/sem_version_focal/ruby.bats
@@ -78,6 +78,11 @@ setup() {
   assert_success
   run ruby --version
   assert_line --partial "ruby 3.3.6"
+
+  run sem-version ruby 3.4
+  assert_success
+  run ruby --version
+  assert_line --partial "ruby 3.4.1"
 }
 
 @test "change ruby to 4.0.1" {
diff --git a/tests/sem_version_jammy/ruby.bats b/tests/sem_version_jammy/ruby.bats
index 65cdf8cb..5eeb8654 100644
--- a/tests/sem_version_jammy/ruby.bats
+++ b/tests/sem_version_jammy/ruby.bats
@@ -78,6 +78,11 @@ setup() {
   assert_success
   run ruby --version
   assert_line --partial "ruby 3.3.6"
+
+  run sem-version ruby 3.4
+  assert_success
+  run ruby --version
+  assert_line --partial "ruby 3.4.1"
 }
 
 @test "change ruby to 4.0.1" {
diff --git a/tests/sem_version_noble/ruby.bats b/tests/sem_version_noble/ruby.bats
index 65cdf8cb..5eeb8654 100644
--- a/tests/sem_version_noble/ruby.bats
+++ b/tests/sem_version_noble/ruby.bats
@@ -78,6 +78,11 @@ setup() {
   assert_success
   run ruby --version
   assert_line --partial "ruby 3.3.6"
+
+  run sem-version ruby 3.4
+  assert_success
+  run ruby --version
+  assert_line --partial "ruby 3.4.1"
 }
 
 @test "change ruby to 4.0.1" {