diff --git a/README_SETUP.md b/README_SETUP.md
index 43047d554afbe8ffba11aef67b20dde44d29bdcf..daab4707679e30cfecf6f995dfb75f327304cb33 100644
--- a/README_SETUP.md
+++ b/README_SETUP.md
@@ -11,7 +11,7 @@ git clone 'https://gitlab.com/caosdb/caosdb-advanced-user-tools'
 Dependencies will be installed automatically if you use the below described
 procedure.
 - `caosdb>=0.6.0`
-- `openpyxl>=3.0.0`
+- `openpyxl>=3.0.7`
 - `xlrd>=1.2.0`
 - `pandas>=1.2.0`
 - `numpy>=1.17.3`
diff --git a/tox.ini b/tox.ini
index ddfb4714f6b86d93e9567fe3c1410f2a1ce965cf..42ff0df986d179ce9770937dba4886f3b4e7ad0f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,7 +8,7 @@ deps=nose
     pytest
     pytest-cov
     gitignore-parser
-    openpyxl
+    openpyxl >= 3.0.7
     xlrd == 1.2
     h5py
 commands=py.test --cov=caosadvancedtools -vv {posargs}