diff --git a/CHANGELOG.md b/CHANGELOG.md
index d2271d24d..ef2c884be 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@
 
 ### Changed
 
+- Dump optimizer-ortools to v1.16.0 [#444] (https://github.com/Mapotempo/optimizer-api/pull/444)
+
 ### Removed
 
 ### Fixed
diff --git a/README.md b/README.md
index 26dd73370..c3bc9f59b 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ bundle install
 
 This project requires some solver and interface projects in order to be fully functional!
 * [Vroom v1.8.0](https://github.com/VROOM-Project/vroom/releases/tag/v1.8.0)
-* [Optimizer-ortools v1.15.0](https://github.com/Mapotempo/optimizer-ortools) & [OR-Tools v7.8](https://github.com/google/or-tools/releases/tag/v7.8) (use the version corresponding to your system operator, not source code).
+* [Optimizer-ortools v1.16.0](https://github.com/Mapotempo/optimizer-ortools) & [OR-Tools v7.8](https://github.com/google/or-tools/releases/tag/v7.8) (use the version corresponding to your system operator, not source code).
 
 Note : when updating OR-Tools you should to recompile optimizer-ortools.
 
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 82c63ead8..2c8babb1b 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -12,7 +12,7 @@ FROM vroomvrp/vroom-docker:${VROOM_VERSION:-v1.8.0} as vroom
 # optimizer-api repo to force the CI to use a specific mapotempo/optimizer-ortools image.
 # Mapotempo devs can also set this variable to their github username on their own optimizer-api repo
 # to force the CI to use the last succesful username/optimizer-ortools image.
-FROM ${REGISTRY:-registry.mapotempo.com/}mapotempo-${BRANCH:-ce}/optimizer-ortools:${OPTIMIZER_ORTOOLS_VERSION:-v1.15.0}
+FROM ${REGISTRY:-registry.mapotempo.com/}mapotempo-${BRANCH:-ce}/optimizer-ortools:${OPTIMIZER_ORTOOLS_VERSION:-v1.16.0}
 ARG BUNDLE_WITHOUT
 
 ENV LANG C.UTF-8