diff --git a/README.md b/README.md
index b11889c11d5ad88e240692ead2472996a8cf0ae2..13e840d6a54083e55d3268612164d24b84aa427f 100644
--- a/README.md
+++ b/README.md
@@ -76,11 +76,12 @@ source /opt/rh/devtoolset-9/enable
 ```
 
 CORSIKA 8 uses the [conan](https://conan.io/) package manager to
-manage our dependencies. If you do not have Conan installed, it can be
+manage our dependencies. Currently, version 1.55.0 or higher is required.
+If you do not have Conan installed, it can be
 installed with:
 
 ``` shell
-pip install --user conan
+pip install --user conan~=1.55.0
 ```
 
 ### Compiling
diff --git a/README.rst b/README.rst
index 81c98d9ec47d3f76797da11d03278d23601b64a6..af6a32d210cf4f26fa2e97e473480c1440d5564f 100644
--- a/README.rst
+++ b/README.rst
@@ -81,11 +81,12 @@ Also initialize devtools, before building CORSIKA 8:
 
 
 CORSIKA 8 uses the `conan <https://conan.io/>`_ package manager to
-manage our dependencies. If you do not have Conan installed, it can be
+manage our dependencies. Currently, version 1.55.0 or higher is required.
+If you do not have Conan installed, it can be
 installed with:
 ::
-   
-  pip install --user conan
+
+  pip install --user conan~=1.55.0
 
   
 Compiling