diff --git a/build/DirectXTex-GitHub-CMake-Dev17.yml b/build/DirectXTex-GitHub-CMake-Dev17.yml
index cd337ca..a88681f 100644
--- a/build/DirectXTex-GitHub-CMake-Dev17.yml
+++ b/build/DirectXTex-GitHub-CMake-Dev17.yml
@@ -17,7 +17,13 @@ resources:
   - repository: self
     type: git
     ref: refs/heads/main
-    trigger: none
+    trigger:
+      branches:
+        include:
+        - main
+      paths:
+        include:
+        - CMakeLists.txt
 
 name: $(Year:yyyy).$(Month).$(DayOfMonth)$(Rev:.r)
 
diff --git a/build/DirectXTex-GitHub-CMake.yml b/build/DirectXTex-GitHub-CMake.yml
index bc4fced..4d2af4c 100644
--- a/build/DirectXTex-GitHub-CMake.yml
+++ b/build/DirectXTex-GitHub-CMake.yml
@@ -17,7 +17,13 @@ resources:
   - repository: self
     type: git
     ref: refs/heads/main
-    trigger: none
+    trigger:
+      branches:
+        include:
+        - main
+      paths:
+        include:
+        - CMakeLists.txt
 
 name: $(Year:yyyy).$(Month).$(DayOfMonth)$(Rev:.r)
 
diff --git a/build/DirectXTex-GitHub-Dev17.yml b/build/DirectXTex-GitHub-Dev17.yml
index 3c16fa2..c30df91 100644
--- a/build/DirectXTex-GitHub-Dev17.yml
+++ b/build/DirectXTex-GitHub-Dev17.yml
@@ -18,7 +18,14 @@ resources:
     type: git
     ref: refs/heads/main
     trigger:
-    - main
+      branches:
+        include:
+        - main
+      paths:
+        exclude:
+        - README.md
+        - HISTORY.md
+        - SECURITY.md
 
 name: $(Year:yyyy).$(Month).$(DayOfMonth)$(Rev:.r)
 
diff --git a/build/DirectXTex-GitHub.yml b/build/DirectXTex-GitHub.yml
index 83a60e4..d3dbd23 100644
--- a/build/DirectXTex-GitHub.yml
+++ b/build/DirectXTex-GitHub.yml
@@ -18,7 +18,14 @@ resources:
     type: git
     ref: refs/heads/main
     trigger:
-    - main
+      branches:
+        include:
+        - main
+      paths:
+        exclude:
+        - README.md
+        - HISTORY.md
+        - SECURITY.md
 
 name: $(Year:yyyy).$(Month).$(DayOfMonth)$(Rev:.r)