diff --git a/CHANGELOG.md b/CHANGELOG.md
index d033b836..0984fed1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,15 +5,22 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
 ### Added
 - Add Mutect2 flow chart
 - Add plantUML action and MuSE flow chart
 - Add NF-test
+
 ### Changed
+- Update LearnRaadOrientationModel allocated memory
+- Update to use `MuSE` v2.0.1 with `MuSE sump` parallelization
 - Update to GATK v4.4.0.0
 - Update `MuSE` retry add memory to 48GB
 - Changed `output_dir` to `output_dir_base` (`methods.config` and `main.nf`)
 
+### Fixed
+- Specify empty string as default for bgzip and tabix extra args
+
 ## [6.0.0-rc.1] - 2023-02-08
 ### Changed
 - Update `README`: add Pipeline Steps and Tool descriptions
diff --git a/config/F16.config b/config/F16.config
index 5798edd5..6abe75b2 100644
--- a/config/F16.config
+++ b/config/F16.config
@@ -60,8 +60,8 @@ process {
         }
     }
     withName: run_LearnReadOrientationModel_GATK {
-        cpus = 4
-        memory = 8.GB
+        cpus = 1
+        memory = 16.GB
         retry_strategy {
             memory {
                 strategy = 'exponential'
diff --git a/config/F32.config b/config/F32.config
index 64c6b62d..d8f2a7a8 100644
--- a/config/F32.config
+++ b/config/F32.config
@@ -60,8 +60,8 @@ process {
         }
     }
     withName: run_LearnReadOrientationModel_GATK {
-        cpus = 4
-        memory = 8.GB
+        cpus = 1
+        memory = 16.GB
         retry_strategy {
             memory {
                 strategy = 'exponential'
diff --git a/config/F72.config b/config/F72.config
index 15301c73..6b0321ae 100644
--- a/config/F72.config
+++ b/config/F72.config
@@ -59,8 +59,8 @@ process {
         }
     }
     withName: run_LearnReadOrientationModel_GATK {
-        cpus = 4
-        memory = 8.GB
+        cpus = 1
+        memory = 16.GB
         retry_strategy {
             memory {
                 strategy = 'exponential'
diff --git a/config/schema.yaml b/config/schema.yaml
index a462f37e..ca2ded4c 100644
--- a/config/schema.yaml
+++ b/config/schema.yaml
@@ -66,6 +66,18 @@ filter_mutect_calls_extra_args:
   required: false
   allow_empty: true
   help: 'Additional arguments for the FilterMutectCalls command'
+bgzip_extra_args:
+  type: 'String'
+  required: false
+  allow_empty: true
+  default: ''
+  help: 'Additional arguments for bgzip command'
+tabix_extra_args:
+  type: 'String'
+  required: false
+  allow_empty: true
+  default: ''
+  help: 'Additional arguments for tabix command'
 scatter_count:
   type: 'Integer'
   required: true