diff --git a/lib/ulib/ptools b/lib/ulib/ptools
index f90af63..f02ce62 100644
--- a/lib/ulib/ptools
+++ b/lib/ulib/ptools
@@ -244,6 +244,7 @@ function nbdot(s) {
   return length(s)
 }
 BEGIN {
+  ### utools, legacy
   if (version ~ /[0-9]+(\.[0-9]+)*(-r[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9][0-9][0-9])?$/) {
     metadata = ""
     # traiter release date
@@ -268,6 +269,32 @@ BEGIN {
     # afficher la version migrée au format semver
     if (metadata != "") print version "+" metadata
     else print version
+
+  ### maven, pom.xml
+  } else if (version ~ /[0-9]+(\.[0-9]+)*(-[sS][nN][aA][pP][sS][hH][oO][tT])?$/) {
+
+    prerelease = ""
+    # traiter prerelease
+    pos = length(version) - 9
+    if (pos > 0) {
+      prerelease = substr(version, pos + 2)
+      version = substr(version, 1, pos)
+    }
+    # traiter prerelease
+    match(version, /[0-9]+(\.[0-9]+(\.[0-9]+)?)?/)
+    pos = RLENGTH
+    if (pos < length(version)) {
+      if (prerelease != "") prerelease = prerelease "."
+      prerelease = prerelease substr(version, pos + 2)
+    }
+    version = substr(version, 1, pos)
+    # ajouter les éléments manquants
+    while (nbdot(version) < 2) {
+      version = version ".0"
+    }
+    # afficher la version migrée au format semver
+    if (prerelease != "") print version "-" prerelease
+    else print version
   }
 }')"
         if [ -n "$mversion" ]; then