diff --git a/requirements.in b/requirements.in
index f85095a..2333b16 100644
--- a/requirements.in
+++ b/requirements.in
@@ -3,7 +3,7 @@ attrs==21.4.0
 click<8  # pip-tools uses it
 boltons
 chameleon<3.10  # 4.0 dropped 2.7 support, 3.10 made scopes dict-like in a way that breaks tests
-coverage
+coverage<6
 face
 glom
 Mako
diff --git a/requirements.txt b/requirements.txt
index 64f1d1c..a08d0a7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ attrs==21.4.0             # via -r requirements.in, glom, pytest
 boltons==23.0.0           # via -r requirements.in, face, glom
 chameleon==3.9.1          # via -r requirements.in
 click==7.1.2              # via -r requirements.in, pip-tools
-coverage==7.2.7           # via -r requirements.in
+coverage==5.5             # via -r requirements.in
 distlib==0.3.7            # via virtualenv
 face==20.1.1              # via -r requirements.in, glom
 filelock==3.12.2          # via tox, virtualenv