diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index e31919b2..70a33b67 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -37,7 +37,7 @@ jobs:
 
     - name: Install dependencies
       run: |
-        conda install -c conda-forge "laz-perf>=3.0" Catch2 pybind11 ninja --yes
+        conda install -c conda-forge "laz-perf>=3.0" Catch2=2.13 pybind11 ninja --yes
         python -m pip install --upgrade pip
         pip install pytest wheel
       shell:
diff --git a/README.md b/README.md
index 36f5bf1a..24eb4257 100644
--- a/README.md
+++ b/README.md
@@ -27,12 +27,12 @@ pip install copclib
 copc-lib has the following dependencies:
 
 - laz-perf>=[3.0.0](https://github.com/hobu/laz-perf/releases/tag/3.0.0)
-- Catch2 (test suite only)
+- Catch2 v2.x (test suite only)
 - Pybind11 (python bindings only)
 
 To install all dependencies:
 ```bash
-conda install -c conda-forge "laz-perf>=3.0" Catch2 pybind11
+conda install -c conda-forge "laz-perf>=3.0" Catch2=2.13 pybind11
 ```
 
 #### C++