diff --git a/CHANGELOG.md b/CHANGELOG.md
index aa1c306..5715fae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Change log
 
+## 1.9.1 
+
+|Table                     |Field           |Change notes                                                    |
+|:-------------------------|:---------------|:---------------------------------------------------------------|
+|genetic_findings          |variant_type    |removed SNV/INDEL as enumerated value; use SNV or INDEL instead |
+|participant               |sex_detail      |updated description                                             |
+
+
 ## 1.9 
 
 |Table |Field |Change notes                                                        |
diff --git a/GREGoR_data_model.json b/GREGoR_data_model.json
index b6476d5..8c7de03 100644
--- a/GREGoR_data_model.json
+++ b/GREGoR_data_model.json
@@ -1,7 +1,7 @@
 {
   "name": "GREGoR Data Model",
   "description": "Data model for the GREGoR consortium",
-  "version": "1.9",
+  "version": "1.9.1",
   "tables": [
     {
       "table": "participant",
@@ -116,7 +116,7 @@
         },
         {
           "column": "sex_detail",
-          "description": "Optional free-text field to describe known discrepancies between 'sex' value (female=>XX, male=>XY) and actual sex chromosome karyotype",
+          "description": "Optional free-text field to describe known discrepancies between 'sex' value (female=>XX, male=>XY) and actual sex chromosome karyotype or other relevant details",
           "data_type": "string",
           "examples": ["XXY expected", "XY expected [for someone assigned female at birth with XY DSD]"]
         },
@@ -343,10 +343,10 @@
           "column": "variant_type",
           "required": true,
           "data_type": "enumeration",
-          "enumerations": ["SNV/INDEL", "SV", "RE", "SNV", "INDEL", "CNV", "MEI", "STR"],
+          "enumerations": ["SNV", "INDEL", "SV", "RE", "CNV", "MEI", "STR"],
           "multi_value_delimiter": "|",
           "examples": "SNV|CNV",
-          "notes": "SNV/INDEL: single nucelotide variants or short insertion/deletions (<50bp)\nRE: repeat elements\nSV: structural variants, including copy number variants and mobile element insertions"
+          "notes": "SNV: single nucelotide variants\nINDEL: short insertion/deletions (<50bp)\nSV: structural variants\nRE: repeat elements\nCNV: copy number variants\nMEI: mobile element insertions\nSTR: short tandem repeats"
         },
         {
           "column": "sv_type",
diff --git a/sheets_to_JSON.R b/sheets_to_JSON.R
index 3a423de..d683a2e 100644
--- a/sheets_to_JSON.R
+++ b/sheets_to_JSON.R
@@ -7,7 +7,7 @@ library(jsonlite)
 url <- "https://docs.google.com/spreadsheets/d/1p_0nhKMvKBueSrUAQMCe9cHv16WyhKSX_jnxNCuGFWg"
 model_name = "GREGoR Data Model"
 model_description = "Data model for the GREGoR consortium"
-model_version = "1.9"
+model_version = "1.9.1"
 
 # table metadata
 meta <- read_sheet(url, sheet="Table overview/status", skip=1)