diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d8795c31..7d85eadd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,7 +35,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.3.5'
+          ruby-version: '3.3.4'
           bundler-cache: true
 
       - name: Set up Node.js
diff --git a/.ruby-version b/.ruby-version
index fa7adc7a..a0891f56 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.5
+3.3.4
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 007683a6..22a5a8d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Changed
 
-- Ruby version updated to 3.3.5
+- Ruby version updated to 3.3.4
 - Visits suggestion process now will try to merge consecutive visits to the same place into one visit.
 
 
diff --git a/Dockerfile.dev b/Dockerfile.dev
index f3964792..35b1f6c6 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -1,4 +1,4 @@
-FROM ruby:3.3.5-alpine
+FROM ruby:3.3.4-alpine
 
 ENV APP_PATH /var/app
 ENV BUNDLE_VERSION 2.5.9
diff --git a/Gemfile.lock b/Gemfile.lock
index 721dbe66..7af1c5d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -462,7 +462,7 @@ DEPENDENCIES
   webmock
 
 RUBY VERSION
-   ruby 3.3.5p100
+   ruby 3.3.4p94
 
 BUNDLED WITH
    2.5.9