diff --git a/CHANGELOG.md b/CHANGELOG.md
index 761d49e..f070a9a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [3.16.1] - 2024-02-09
 
 ### Changed
-    - Deploy new dev-tools image to get latest ragger version.
+    - [dev-tools] : specify latest version of ragger.
 
 ## [3.16.0] - 2024-02-08
 
diff --git a/dev-tools/Dockerfile b/dev-tools/Dockerfile
index a012e2a..469205b 100644
--- a/dev-tools/Dockerfile
+++ b/dev-tools/Dockerfile
@@ -20,4 +20,4 @@ ARG PYTHON_BUILD_DEPS=libffi-dev,python3-dev,py3-virtualenv
 RUN apk add $(echo -n "$PYTHON_BUILD_DEPS" | tr , ' ')
 
 # Install test tools (Ragger framework, Speculos emulator, Ledgerblue...)
-RUN pip3 install ragger[tests,all_backends]
+RUN pip3 install ragger[tests,all_backends]==1.14.3