diff --git a/manifest.toml b/manifest.toml
index 368a014..cdb762b 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -55,14 +55,14 @@ ram.runtime = "50M" # FIXME: replace with an **estimate** minimum ram requiremen
         "postgresql",
         "postgresql-contrib",
 
-        "php7.3-mbstring",
-        "php7.3-cli",
-        "php7.3-imagick",
-        "php7.3-xml",
-        "php7.3-zip",
-        "php7.3-pgsql",
-        "php7.3-json",
-        "php7.3-gd",
+        "php7.4-mbstring",
+        "php7.4-cli",
+        "php7.4-imagick",
+        "php7.4-xml",
+        "php7.4-zip",
+        "php7.4-pgsql",
+        "php7.4-json",
+        "php7.4-gd",
     ]
 
     [resources.database]