diff --git a/src/sssom/obo.epm.json b/src/sssom/obo.epm.json
index fdc6162e..3aec8f87 100644
--- a/src/sssom/obo.epm.json
+++ b/src/sssom/obo.epm.json
@@ -4732,6 +4732,32 @@
             "https://www.ebi.ac.uk/ols/ontologies/omiabis/terms?iri=http://purl.obolibrary.org/obo/OMIABIS_"
         ]
     },
+    {
+        "pattern": "^\\d+$",
+        "prefix": "OMIMPS",
+        "prefix_synonyms": [
+            "MIMPS",
+            "PS",
+            "mim.ps",
+            "omim.ps"
+        ],
+        "uri_prefix": "https://omim.org/MIM:PS",
+        "uri_prefix_synonyms": [
+            "http://bioregistry.io/MIMPS:",
+            "http://bioregistry.io/OMIMPS:",
+            "http://bioregistry.io/PS:",
+            "http://bioregistry.io/mim.ps:",
+            "http://bioregistry.io/omim.ps:",
+            "http://omim.org/MIM:PS",
+            "http://omim.org/phenotypicSeries/PS",
+            "https://bioregistry.io/MIMPS:",
+            "https://bioregistry.io/OMIMPS:",
+            "https://bioregistry.io/PS:",
+            "https://bioregistry.io/mim.ps:",
+            "https://bioregistry.io/omim.ps:",
+            "https://omim.org/phenotypicSeries/PS"
+        ]
+    },
     {
         "pattern": "^\\d{7}$",
         "prefix": "OMIT",
@@ -19902,32 +19928,6 @@
             "https://www.omim.org/entry/"
         ]
     },
-    {
-        "pattern": "^\\d+$",
-        "prefix": "omim.ps",
-        "prefix_synonyms": [
-            "MIMPS",
-            "OMIMPS",
-            "PS",
-            "mim.ps"
-        ],
-        "uri_prefix": "https://omim.org/MIM:PS",
-        "uri_prefix_synonyms": [
-            "http://bioregistry.io/MIMPS:",
-            "http://bioregistry.io/OMIMPS:",
-            "http://bioregistry.io/PS:",
-            "http://bioregistry.io/mim.ps:",
-            "http://bioregistry.io/omim.ps:",
-            "http://omim.org/MIM:PS",
-            "http://omim.org/phenotypicSeries/PS",
-            "https://bioregistry.io/MIMPS:",
-            "https://bioregistry.io/OMIMPS:",
-            "https://bioregistry.io/PS:",
-            "https://bioregistry.io/mim.ps:",
-            "https://bioregistry.io/omim.ps:",
-            "https://omim.org/phenotypicSeries/PS"
-        ]
-    },
     {
         "pattern": "^\\d+$",
         "prefix": "omop",