diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e86325768e..7251626608 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,7 +1,7 @@
 # Build, test and upload executables to GitHub
 # depends on pre-installed software; see image definitions:
 #  - https://github.com/actions/runner-images/blob/main/images/linux/Ubuntu2404-Readme.md
-#  - https://github.com/actions/runner-images/blob/main/images/macos/macos-15-Readme.md
+#  - https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md
 # We use these tools from the runner images: git, gcc/XCode/MSVC, swig, Tcl/Tk on MacOS, pkg-config
 
 # TODO: not building svs_viewer ('Cannot find GL, GLU, not building svs_viewer' and 'Cannot find opengl32, glu32, not building svs_viewer')
@@ -31,7 +31,7 @@ jobs:
           # Use v24 beta for now to get newer SWIG; TODO: change back to ubuntu-latest once it points to v24
           # ubuntu-24.04,
           # latest available X86_64 target
-          macos-15,
+          macos-14,
           # latest is ARM
           # macos-latest,
         ]
@@ -286,7 +286,7 @@ jobs:
   #           # 20.04 to preserve compatibility with testing stage
   #           ubuntu-20.04,
   #           # latest available X86_64 target
-  #           macos-15,
+  #           macos-14,
   #           # latest is ARM
   #           macos-latest,
 
@@ -372,7 +372,7 @@ jobs:
   #         # linux target which supports all python versions we want to install for
   #         - ubuntu-20.04
   #           # latest available X86_64 target
-  #         - macos-15
+  #         - macos-14
   #           # latest is ARM
   #         - macos-latest
   #         - windows-latest