diff --git a/.github/workflows/mr_ci.yml b/.github/workflows/mr_ci.yml
index fef6e30b..0f4462bd 100644
--- a/.github/workflows/mr_ci.yml
+++ b/.github/workflows/mr_ci.yml
@@ -1,7 +1,10 @@
 ---
 name: Units Tests
 
-on: [push]
+on:
+  pull_request:
+    branches:
+      - main
 
 jobs:
 
diff --git a/.github/workflows/mr_ci_text_spotting.yml b/.github/workflows/mr_ci_text_spotting.yml
index d321d7bc..43bc3f1d 100644
--- a/.github/workflows/mr_ci_text_spotting.yml
+++ b/.github/workflows/mr_ci_text_spotting.yml
@@ -1,7 +1,10 @@
 ---
 name: Units Tests - Text Spotting
 
-on: [push]
+on:
+  pull_request:
+    branches:
+      - main
 
 # Run linter with github actions for quick feedbacks.
 jobs:
diff --git a/.github/workflows/publish-to-conda-forge.yml b/.github/workflows/publish-to-conda-forge.yml
index e5950501..9b177cc3 100644
--- a/.github/workflows/publish-to-conda-forge.yml
+++ b/.github/workflows/publish-to-conda-forge.yml
@@ -4,6 +4,8 @@ name: Publish to Conda Forge
 on:
   workflow_dispatch:
   push:
+    branches:
+      - main
     tags:
       - v*
 
diff --git a/.github/workflows/publish-to-pypi.yml b/.github/workflows/publish-to-pypi.yml
index 502489b9..0ac400e6 100644
--- a/.github/workflows/publish-to-pypi.yml
+++ b/.github/workflows/publish-to-pypi.yml
@@ -4,6 +4,8 @@ name: Publish Tagged Python 🐍 distributions 📦 to PyPI
 on:
   workflow_dispatch:
   push:
+    branches:
+      - main
     tags:
       - v*