diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 80dd268..3a1b910 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -20,8 +20,8 @@ env:
   IMAGE_NAME: ${{ github.repository }}
   TEST_TAG: ${{ github.repository }}:test
   TEST_EXPECTED_NODE_OUTPUT: "v20.17.0"
-  TEST_EXPECTED_ELIXIR_OUTPUT: "Elixir 1.17.2 (compiled with Erlang/OTP 27)"
-  TEST_EXPECTED_ERLANG_OUTPUT: "27.0.1"
+  TEST_EXPECTED_ELIXIR_OUTPUT: "Elixir 1.17.3 (compiled with Erlang/OTP 27)"
+  TEST_EXPECTED_ERLANG_OUTPUT: "27.1"
 jobs:
   build-and-push-image:
     runs-on: ubuntu-latest
diff --git a/transport-site/Dockerfile b/transport-site/Dockerfile
index 13358b6..713cae2 100644
--- a/transport-site/Dockerfile
+++ b/transport-site/Dockerfile
@@ -21,7 +21,7 @@ FROM ghcr.io/etalab/transport-tools:v1.0.7 AS transport-tools
 # So again, to upgrade this, check out : 
 #
 # https://hub.docker.com/r/hexpm/elixir
-FROM hexpm/elixir:1.17.2-erlang-27.0.1-ubuntu-focal-20240530
+FROM hexpm/elixir:1.17.3-erlang-27.1-ubuntu-focal-20240530
 
 ARG DEBIAN_FRONTEND=noninteractive
 ENV TZ=Europe/Paris