diff --git a/vinca_linux_64.yaml b/vinca_linux_64.yaml
index c17dc6d07..d0efe43be 100644
--- a/vinca_linux_64.yaml
+++ b/vinca_linux_64.yaml
@@ -80,6 +80,8 @@ packages_select_by_deps:
   # requested in https://github.com/RoboStack/ros-humble/issues/252
   - rmw_zenoh_cpp
 
+  - flex_sync
+
 
 patch_dir: patch
 rosdistro_snapshot: rosdistro_snapshot.yaml
diff --git a/vinca_linux_aarch64.yaml b/vinca_linux_aarch64.yaml
index 91520513f..d7b9ad216 100644
--- a/vinca_linux_aarch64.yaml
+++ b/vinca_linux_aarch64.yaml
@@ -80,5 +80,7 @@ packages_select_by_deps:
   # requested in https://github.com/RoboStack/ros-humble/issues/252
   - rmw_zenoh_cpp
 
+  - flex_sync
+
 patch_dir: patch
 rosdistro_snapshot: rosdistro_snapshot.yaml
diff --git a/vinca_osx.yaml b/vinca_osx.yaml
index f2d5b2450..3eda821bc 100644
--- a/vinca_osx.yaml
+++ b/vinca_osx.yaml
@@ -90,6 +90,7 @@ packages_select_by_deps:
   # requested in https://github.com/RoboStack/ros-humble/issues/252
   - rmw_zenoh_cpp
 
+  - flex_sync
 
 patch_dir: patch
 rosdistro_snapshot: rosdistro_snapshot.yaml
diff --git a/vinca_osx_arm64.yaml b/vinca_osx_arm64.yaml
index 0acecce23..2894cdecb 100644
--- a/vinca_osx_arm64.yaml
+++ b/vinca_osx_arm64.yaml
@@ -90,6 +90,8 @@ packages_select_by_deps:
   # requested in https://github.com/RoboStack/ros-humble/issues/252
   - rmw_zenoh_cpp
 
+  - flex_sync
+
 
 patch_dir: patch
 rosdistro_snapshot: rosdistro_snapshot.yaml
diff --git a/vinca_win.yaml b/vinca_win.yaml
index 95d3fe498..26ce1cd97 100644
--- a/vinca_win.yaml
+++ b/vinca_win.yaml
@@ -92,6 +92,8 @@ packages_select_by_deps:
   # requested in https://github.com/RoboStack/ros-humble/issues/252
   - rmw_zenoh_cpp
 
+  - flex_sync
+
 patch_dir: patch
 rosdistro_snapshot: rosdistro_snapshot.yaml