diff --git a/src/subsystems/php/semver.nix b/src/subsystems/php/semver.nix
index 0a49f25e..ce4a1240 100644
--- a/src/subsystems/php/semver.nix
+++ b/src/subsystems/php/semver.nix
@@ -53,7 +53,7 @@
 
   re = {
     operators = "([=><!~^]+)";
-    version = "((0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)|(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)|(0|[1-9][0-9]*)){0,1}([.x*]*)(-((0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*)(\\.(0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*))*)){0,1}(\\+([0-9a-zA-Z-]+(\\.[0-9a-zA-Z-]+)*)){0,1}";
+    version = "((0|[1-9][0-9]*)[.](0|[1-9][0-9]*)[.](0|[1-9][0-9]*)[.](0|[1-9][0-9]*)|(0|[1-9][0-9]*)[.](0|[1-9][0-9]*)[.](0|[1-9][0-9]*)|(0|[1-9][0-9]*)[.](0|[1-9][0-9]*)|(0|[1-9][0-9]*))?(-((0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*)(\\.(0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*))*))?(\\+([0-9a-zA-Z-]+(\\.[0-9a-zA-Z-]+)*))?";
   };
 
   reLengths = {