diff --git a/.travis.yml b/.travis.yml
index d61e105bce3f8265d3693b59a06f70d9db1f1f79..96ffb6671dd5b4a53d1e7fcc0f32062a8fcb842a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -57,6 +57,7 @@ install:
   - pip install base58
   - pip install quamash
   - pip install aiohttp
+  - pip install ucoinpy
   - pip install git+https://github.com/Insoleet/pretenders.git@develop
   - python gen_resources.py
   - python gen_translations.py
diff --git a/ci/appveyor/build.cmd b/ci/appveyor/build.cmd
index 7728f4820e4ead24bf6637d947f7bbc883482b29..85830f78944d72e40c3215db7e70844f30a099f1 100644
--- a/ci/appveyor/build.cmd
+++ b/ci/appveyor/build.cmd
@@ -17,6 +17,7 @@ pip install requests
 pip install base58
 pip install git+https://github.com/Insoleet/quamash.git@sockets_only
 pip install aiohttp
+pip install ucoinpy
 pip install git+https://github.com/Insoleet/pretenders.git@develop
 
 python gen_resources.py