diff --git a/.travis.yml b/.travis.yml
index 06b0ec3..dea895f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,12 +25,15 @@ jobs:
       env:
         scenario: module_centos
     - name: (Debian/Ubuntu) Install NGINX Plus
+      if: not (type = "pull_request" and fork = "true")
       env:
         scenario: plus
     - name: (Alpine Linux) Install NGINX Plus
+      if: not (type = "pull_request" and fork = "true")
       env:
         scenario: plus_alpine
     - name: (CentOS) Install NGINX Plus
+      if: not (type = "pull_request" and fork = "true")
       env:
         scenario: plus_centos
     - name: (Debian/Ubuntu) Install stable branch and push a config
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 810e96e..4b0692b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.17.3 (Unreleased)
+
+BUG FIXES:
+
+*   Prevent TravisCI from trying to build (and failing) NGINX Plus images on external PRs.
+
 ## 0.17.2 (September 24, 2020)
 
 BUG FIXES: