diff --git a/CHANGELOG.md b/CHANGELOG.md
index dae4bd69..f751b44d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Improve the method of Hitselection module to run the pipeline faster ([#222]https://github.com/nf-core/crisprseq/pull/222)
 - Fix a bug in the DrugZ module for the removed genes parameter ([#222]https://github.com/nf-core/crisprseq/pull/222)
 - Allow csv files in the validation of the `--library` parameter ([#229](https://github.com/nf-core/crisprseq/pull/229))
+- Add dplyr in the environment.yml for the crisprcleanr module
 
 ### General
 
diff --git a/modules/nf-core/crisprcleanr/normalize/environment.yml b/modules/nf-core/crisprcleanr/normalize/environment.yml
index b183c62d..75928e5e 100644
--- a/modules/nf-core/crisprcleanr/normalize/environment.yml
+++ b/modules/nf-core/crisprcleanr/normalize/environment.yml
@@ -5,3 +5,4 @@ channels:
   - defaults
 dependencies:
   - bioconda::r-crisprcleanr=3.0.0
+  - conda-forge::r-dplyr==1.1.4