diff --git a/src/PyHyperScattering/SST1RSoXSDB.py b/src/PyHyperScattering/SST1RSoXSDB.py
index b88d6d22..a964e4da 100644
--- a/src/PyHyperScattering/SST1RSoXSDB.py
+++ b/src/PyHyperScattering/SST1RSoXSDB.py
@@ -289,7 +289,7 @@ def searchCatalog(
                 # For numeric entries, do Key equality
                 if "numeric" in str(searchSeries[2]):
                     reducedCatalog = reducedCatalog.search(
-                        Key(searchSeries[0]) == float(searchSeries[1])
+                        Key(searchSeries.iloc[0]) == float(searchSeries.iloc[1])
                     )
 
                 else:  # Build regex search string
@@ -299,16 +299,16 @@ def searchCatalog(
                     # Regex cheatsheet:
                     # (?i) is case insensitive
                     # ^_$ forces exact match to _, ^ anchors the start, $ anchors the end
-                    if "case-insensitive" in str(searchSeries[2]):
+                    if "case-insensitive" in str(searchSeries.iloc[2]):
                         reg_prefix += "(?i)"
-                    if "exact" in searchSeries[2]:
+                    if "exact" in searchSeries.iloc[2]:
                         reg_prefix += "^"
                         reg_postfix += "$"
 
-                    regexString = reg_prefix + str(searchSeries[1]) + reg_postfix
+                    regexString = reg_prefix + str(searchSeries.iloc[1]) + reg_postfix
 
                     # Search/reduce the catalog
-                    reducedCatalog = reducedCatalog.search(Regex(searchSeries[0], regexString))
+                    reducedCatalog = reducedCatalog.search(Regex(searchSeries.iloc[0], regexString))
 
                 # If a match fails, notify the user which search parameter yielded 0 results
                 if len(reducedCatalog) == 0: