diff --git a/.github/workflows/explosionbot.yml b/.github/workflows/explosionbot.yml
index 6b472cd12..910cfdc40 100644
--- a/.github/workflows/explosionbot.yml
+++ b/.github/workflows/explosionbot.yml
@@ -8,6 +8,7 @@ on:
 
 jobs:
   explosion-bot:
+    if: github.repository_owner == 'explosion'
     runs-on: ubuntu-latest
     steps:
       - name: Dump GitHub context
diff --git a/.github/workflows/issue-manager.yml b/.github/workflows/issue-manager.yml
index 8f3a151ea..6c7d7d5a6 100644
--- a/.github/workflows/issue-manager.yml
+++ b/.github/workflows/issue-manager.yml
@@ -13,6 +13,7 @@ on:
 
 jobs:
   issue-manager:
+    if: github.repository_owner == 'explosion'
     runs-on: ubuntu-latest
     steps:
       - uses: tiangolo/issue-manager@0.4.0
diff --git a/.github/workflows/lock.yml b/.github/workflows/lock.yml
index 794adee85..6c3985a93 100644
--- a/.github/workflows/lock.yml
+++ b/.github/workflows/lock.yml
@@ -13,6 +13,7 @@ concurrency:
 
 jobs:
   action:
+    if: github.repository_owner == 'explosion'
     runs-on: ubuntu-latest
     steps:
       - uses: dessant/lock-threads@v4
diff --git a/.github/workflows/spacy_universe_alert.yml b/.github/workflows/spacy_universe_alert.yml
index 837aaeb33..33851fbcc 100644
--- a/.github/workflows/spacy_universe_alert.yml
+++ b/.github/workflows/spacy_universe_alert.yml
@@ -7,6 +7,7 @@ on:
 
 jobs:
   build:
+    if: github.repository_owner == 'explosion'
     runs-on: ubuntu-latest
 
     steps:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 41ea6ce50..f226057c9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -21,6 +21,7 @@ on:
 jobs:
   validate:
     name: Validate
+    if: github.repository_owner == 'explosion'
     runs-on: ubuntu-latest
     steps:
       - name: Check out repo
diff --git a/.github/workflows/universe_validation.yml b/.github/workflows/universe_validation.yml
index f9e317aaa..a1e3253a9 100644
--- a/.github/workflows/universe_validation.yml
+++ b/.github/workflows/universe_validation.yml
@@ -16,6 +16,7 @@ on:
 jobs:
   validate:
     name: Validate
+    if: github.repository_owner == 'explosion'
     runs-on: ubuntu-latest
     steps:
       - name: Check out repo