diff --git a/.travis.yml b/.travis.yml
index 995291c420..bf6a3c3fa2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -43,8 +43,6 @@ php:
   - 8.1
   - 8.0
   - 7.4
-  - 7.3
-  - 7.2
 
 env:
   - DB=mysql
diff --git a/README.md b/README.md
index 4cdbb98d02..0c278d3122 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Requirements
 ------------
 
 * MySQL 5.5.35+, PostgreSQL 9.2+, or other supported database
-* PHP 7.2.5+
+* PHP 7.4.0+
 * a webserver (e.g. Apache or IIS)
 
 Please refer to section 2.2 in the administration guide for further details.
diff --git a/composer.json b/composer.json
index 92dadfd3f3..518f7f172e 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
     "description": "Mantis Bug Tracker",
     "type": "project",
     "require": {
-        "php": "^7.2.5 || ^8.0",
+        "php": "^7.4 || ^8.0",
         "ext-mbstring": "*",
         "ext-json": "*",
         "slim/slim": "^3.0",
@@ -36,7 +36,7 @@
     ],
     "config": {
         "platform": {
-            "php": "7.2.5"
+            "php": "7.4.0"
         }
     }
 }
diff --git a/core/constant_inc.php b/core/constant_inc.php
index 6ef7cefb86..b96f30b630 100644
--- a/core/constant_inc.php
+++ b/core/constant_inc.php
@@ -35,7 +35,7 @@
 define( 'WARN', 2 );
 
 # PHP-related constants
-define( 'PHP_MIN_VERSION', '7.2.5' );
+define( 'PHP_MIN_VERSION', '7.4.0' );
 define( 'PHP_CLI', 0 );
 define( 'PHP_CGI', 1 );
 
diff --git a/docbook/Admin_Guide/en-US/Installation.xml b/docbook/Admin_Guide/en-US/Installation.xml
index fd8d942dd2..10ee44de80 100644
--- a/docbook/Admin_Guide/en-US/Installation.xml
+++ b/docbook/Admin_Guide/en-US/Installation.xml
@@ -340,7 +340,7 @@
 							<row>
 								<entry>PHP</entry>
 								<entry>PHP</entry>
-								<entry>7.2.5</entry>
+								<entry>7.4</entry>
 								<entry>8.0 or later</entry>
 								<entry>See above for PHP extensions</entry>
 							</row>