diff --git a/.github/workflows/javadoc.yml b/.github/workflows/javadoc.yml
index 86eeca04..aa7addcd 100644
--- a/.github/workflows/javadoc.yml
+++ b/.github/workflows/javadoc.yml
@@ -19,7 +19,7 @@ on:
 
 jobs:
   build-and-package-javadoc:
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
     permissions:
       contents: read
 
diff --git a/.github/workflows/stageReleaseSources.yml b/.github/workflows/stageReleaseSources.yml
index bd7dac4d..005afd30 100644
--- a/.github/workflows/stageReleaseSources.yml
+++ b/.github/workflows/stageReleaseSources.yml
@@ -14,7 +14,7 @@ on:
 
 jobs:
   assemble-source-candidate:
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
     permissions:
       contents: read