diff --git a/CHANGELOG.md b/CHANGELOG.md
index 196c61e6d1..5032061396 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -74,6 +74,7 @@ release.
 - Fixed exception pop ups in qview when viewing images created using the CSM Camera [#5259](https://github.com/DOI-USGS/ISIS3/pull/5295/files)
 - Fixed shadowtau input file parseing errors when using example file [#5316](https://github.com/DOI-USGS/ISIS3/pull/5316)
 - Fixed ProgramLauncher failing while reporting errors from launched programs [#5331](https://github.com/DOI-USGS/ISIS3/pull/5331)
+- Fixed high/low filter functionality in trimfilter [#5311](https://github.com/DOI-USGS/ISIS3/issues/5311)
 
 ## [8.0.1] - 2023-08-23
 
diff --git a/isis/src/base/apps/trimfilter/main.cpp b/isis/src/base/apps/trimfilter/main.cpp
index 8b9ba03aa4..3b79ce80cd 100644
--- a/isis/src/base/apps/trimfilter/main.cpp
+++ b/isis/src/base/apps/trimfilter/main.cpp
@@ -27,6 +27,13 @@ void IsisMain() {
   double low = -DBL_MAX;
   double high = DBL_MAX;
   int minimum;
+
+  if(ui.WasEntered("LOW")) {
+    low = ui.GetDouble("LOW");
+  }
+  if(ui.WasEntered("HIGH")) {
+    high = ui.GetDouble("HIGH");
+  }
   if(ui.GetString("MINOPT") == "PERCENTAGE") {
     int size = lines * samples;
     double perc = ui.GetDouble("MINIMUM") / 100;
@@ -35,6 +42,7 @@ void IsisMain() {
   else {
     minimum = (int) ui.GetDouble("MINIMUM");
   }
+
   p.SetFilterParameters(samples, lines, low, high, minimum);
 
   // Process each line