diff --git a/csv_metadata_quality/check.py b/csv_metadata_quality/check.py
index 88c1f5c..5d9c461 100755
--- a/csv_metadata_quality/check.py
+++ b/csv_metadata_quality/check.py
@@ -216,7 +216,7 @@ def agrovoc(field, field_name):
     )
 
     # prune old cache entries
-    requests_cache.core.remove_expired_responses()
+    requests_cache.remove_expired_responses()
 
     # Try to split multi-value field on "||" separator
     for value in field.split("||"):
diff --git a/pyproject.toml b/pyproject.toml
index 579be9a..40fa17b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ pandas = "^1.0.4"
 python-stdnum = "^1.13"
 xlrd = "^1.2.0"
 requests = "^2.23.0"
-requests-cache = "^0.5.2"
+requests-cache = "~0.6.4"
 pycountry = "^19.8.18"
 langid = "^1.1.6"
 colorama = "^0.4.4"