diff --git a/.github/actions/upstream-test/action.yml b/.github/actions/upstream-test/action.yml
index 92b826f57..728382688 100644
--- a/.github/actions/upstream-test/action.yml
+++ b/.github/actions/upstream-test/action.yml
@@ -28,7 +28,7 @@ inputs:
   double_down_version:
     description: Version of Double Down
     required: false
-    default: develop
+    default: 1.1.0
 
 runs:
   using: "composite"
diff --git a/.github/workflows/docker_publish.yml b/.github/workflows/docker_publish.yml
index bd04a21b8..5c95b41a7 100644
--- a/.github/workflows/docker_publish.yml
+++ b/.github/workflows/docker_publish.yml
@@ -29,7 +29,7 @@ jobs:
          5.3.0,
         ]
         double_down_version : [
-          develop,
+          1.1.0,
         ]
         geant4_version : [
           10.7.4,
@@ -91,7 +91,7 @@ jobs:
           5.3.0,
         ]
         double_down_version : [
-          develop,
+          1.1.0,
         ]
         geant4_version : [
           10.7.4,
diff --git a/.github/workflows/linux_upstream_test_double_down.yml b/.github/workflows/linux_upstream_test_double_down.yml
index d7a7bdc70..08c336106 100644
--- a/.github/workflows/linux_upstream_test_double_down.yml
+++ b/.github/workflows/linux_upstream_test_double_down.yml
@@ -1,4 +1,4 @@
-name: Test against Double Down on PR merge
+name: Test against newer Double Down on PR merge
 
 on:
   # allows us to run workflows manually
diff --git a/.github/workflows/linux_upstream_test_moab.yml b/.github/workflows/linux_upstream_test_moab.yml
index 4e6df8faf..640201289 100644
--- a/.github/workflows/linux_upstream_test_moab.yml
+++ b/.github/workflows/linux_upstream_test_moab.yml
@@ -1,4 +1,4 @@
-name: Test against MOAB master on PR merge
+name: Test against newer MOAB on PR merge
 
 on:
   # allows us to run workflows manually
diff --git a/CI/Dockerfile b/CI/Dockerfile
index b8f8d3e43..35080e273 100644
--- a/CI/Dockerfile
+++ b/CI/Dockerfile
@@ -6,10 +6,10 @@
 # Global ARGS set before the first build stage are accessable by all build stages
 ARG UBUNTU_VERSION=22.04
 ARG HDF5_VERSION=1.10.4
-ARG EMBREE_VERSION='v3.6.1'
+ARG EMBREE_VERSION='v4.0.1'
 ARG Geant4_VERSION=11.1.2
 ARG MOAB_VERSION=5.3.0
-ARG DOUBLE_DOWN_VERSION='develop'
+ARG DOUBLE_DOWN_VERSION=1.1.0
 ARG CI_JOBS=4
 
 ARG build_dir=/root/build_dir