diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6798e248d0..ee973b9cef 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,7 +4,17 @@ on:
   push:
     branches:
       - master              # run for the master branch
+    paths:
+      - conjure-cp.cabal
+      - Makefile
+      - src/**
+      - etc/build/**
   pull_request:             # and for PRs
+    paths:
+      - conjure-cp.cabal
+      - Makefile
+      - src/**
+      - etc/build/**
                             # other branches that want testing must create a PR
 
 jobs:
diff --git a/.github/workflows/solvers.yml b/.github/workflows/solvers.yml
index 4e8417aa7f..80bc97de9e 100644
--- a/.github/workflows/solvers.yml
+++ b/.github/workflows/solvers.yml
@@ -4,7 +4,13 @@ on:
   push:
     branches:
       - master              # run for the master branch
+    paths:
+      - etc/build/install*.sh
+      - Makefile
   pull_request:             # and for PRs
+    paths:
+      - etc/build/install*.sh
+      - Makefile
                             # other branches that want testing must create a PR
 
 jobs:
diff --git a/.github/workflows/test-coverage.yml b/.github/workflows/test-coverage.yml
index 67b92f5625..20a5686351 100644
--- a/.github/workflows/test-coverage.yml
+++ b/.github/workflows/test-coverage.yml
@@ -4,6 +4,12 @@ on:
   push:
     branches:
       - master              # run for the master branch only
+    paths:
+      - conjure-cp.cabal
+      - Makefile
+      - src/**
+      - tests/**
+      - etc/build/**
 
 jobs:
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 811acdda8e..55165a28db 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,7 +4,19 @@ on:
   push:
     branches:
       - master              # run for the master branch
+    paths:
+      - conjure-cp.cabal
+      - Makefile
+      - src/**
+      - tests/**
+      - etc/build/**
   pull_request:             # and for PRs
+    paths:
+      - conjure-cp.cabal
+      - Makefile
+      - src/**
+      - tests/**
+      - etc/build/**
                             # other branches that want testing must create a PR
 
 jobs: