diff --git a/infra/config/cr-buildbucket.cfg b/infra/config/cr-buildbucket.cfg
index 888434ff7..a1c434cd2 100644
--- a/infra/config/cr-buildbucket.cfg
+++ b/infra/config/cr-buildbucket.cfg
@@ -20,7 +20,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -40,7 +40,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -60,7 +60,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -134,7 +134,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -154,7 +154,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -174,7 +174,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -194,7 +194,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -214,7 +214,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -234,7 +234,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -254,7 +254,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -274,7 +274,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -294,7 +294,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -314,7 +314,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -334,7 +334,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.ci"
       recipe {
         name: "libyuv/libyuv"
@@ -730,7 +730,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -750,7 +750,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -808,7 +808,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -828,7 +828,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -848,7 +848,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -868,7 +868,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -888,7 +888,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -908,7 +908,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -928,7 +928,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -948,7 +948,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "libyuv/libyuv"
@@ -1025,7 +1025,7 @@ buckets {
       swarming_tags: "vpython:native-python-wrapper"
       dimensions: "cores:8"
       dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-24.04"
+      dimensions: "os:Ubuntu-22.04"
       dimensions: "pool:luci.flex.try"
       recipe {
         name: "run_presubmit"
diff --git a/infra/config/main.star b/infra/config/main.star
index a2a2ff138..97f8bb206 100755
--- a/infra/config/main.star
+++ b/infra/config/main.star
@@ -241,7 +241,7 @@ def get_os_dimensions(os):
     elif os == "win":
         return {"os": "Windows-10", "cores": "8", "cpu": "x86-64"}
     elif os == "linux":
-        return {"os": "Ubuntu-24.04", "cores": "8", "cpu": "x86-64"}
+        return {"os": "Ubuntu-22.04", "cores": "8", "cpu": "x86-64"}
     return {}
 
 def libyuv_ci_builder(name, dimensions, properties, triggered_by):
diff --git a/infra/config/project.cfg b/infra/config/project.cfg
index 09d22b794..09a40e350 100644
--- a/infra/config/project.cfg
+++ b/infra/config/project.cfg
@@ -7,7 +7,8 @@
 name: "libyuv"
 access: "group:all"
 lucicfg {
-  version: "1.46.0"
+  version: "1.45.8"
+  package_name: "@libyuv-project"
   package_dir: "."
   config_dir: "."
   entry_point: "main.star"