diff --git a/R/FamiliarObjectUpdate.R b/R/FamiliarObjectUpdate.R
index b5893922..4d7b3ac4 100644
--- a/R/FamiliarObjectUpdate.R
+++ b/R/FamiliarObjectUpdate.R
@@ -277,6 +277,19 @@ setMethod(
         })
     }
     
+    if (tail(object@familiar_version, n = 1L) < "1.5.0") {
+      # Update feature_expressions slot by iterating over its contents. This is
+      # to account for changes in transformation objects, introduced with 1.5.0.
+      object@feature_expressions <- lapply(
+        object@feature_expressions,
+        function(x) {
+          x@feature_info <- update_object(x@feature_info)
+          
+          return(x)
+        }
+      )
+    }
+    
     if (!methods::validObject(object)) {
       stop("Could not update the familiarData object to the most recent definition.")
     }
@@ -377,6 +390,19 @@ setMethod(
         })
     }
     
+    if (tail(object@familiar_version, n = 1L) < "1.5.0") {
+      # Update feature_expressions slot by iterating over its contents. This is
+      # to account for changes in transformation objects, introduced with 1.5.0.
+      object@feature_expressions <- lapply(
+        object@feature_expressions,
+        function(x) {
+          x@feature_info <- update_object(x@feature_info)
+          
+          return(x)
+        }
+      )
+    }
+    
     if (!methods::validObject(object)) {
       stop("Could not update the familiarCollection object to the most recent definition.")
     }