diff --git a/.github/workflows/formatting.yml b/.github/workflows/formatting.yml
index 1ea81ad7a7..0c5466ea02 100644
--- a/.github/workflows/formatting.yml
+++ b/.github/workflows/formatting.yml
@@ -39,7 +39,7 @@ jobs:
         run: pip3 install --upgrade pip wheel
 
       - name: "Install BuildingsPy"
-        run: pip3 install git+https://github.com/lbl-srg/BuildingsPy@v5.1.0
+        run: pip3 install git+https://github.com/lbl-srg/BuildingsPy@0f21a33a8416149d6aa297e25c6e7dc11e1d21bd
 
 
       - name: "Test html syntax"
diff --git a/.travis.yml b/.travis.yml
index b05915497c..2c87ba5bd8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,9 +21,9 @@ services:
 env:
   global:
     - DOCKER_REPONAME=lbnlblum
-    - BUILDINGSPY_VERSION=BuildingsPy@v5.1.0
+    - BUILDINGSPY_VERSION=BuildingsPy@0f21a33a8416149d6aa297e25c6e7dc11e1d21bd
     - OMC_VERSION=ubuntu-2204-omc:1.24.0-1
-    - DYMOLA_VERSION=travis_ubuntu-2004_dymola:2025x-x86_64
+    - DYMOLA_VERSION=travis_ubuntu-2004_dymola:2025x-x86_64_rev-1
 
   jobs:
     # Test matrix for regression tests.