diff --git a/test-requirements.txt b/test-requirements.txt
index d15d52d6..d22aaabc 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -138,9 +138,9 @@ importlib-metadata==1.7.0 \
     --hash=sha256:90bb658cdbbf6d1735b6341ce708fc7024a3e14e99ffdc5783edea9f9b077f83 \
     --hash=sha256:dc15b2969b4ce36305c51eebe62d418ac7791e9a157911d58bfb1f9ccd8e2070 \
     # via -r ./test-requirements.txt, jsonschema, pluggy, pytest
-isort==4.3.21 \
-    --hash=sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1 \
-    --hash=sha256:6e811fcb295968434526407adb8796944f1988c5b65e8139058f2014cbe100fd \
+isort==5.6.1 \
+    --hash=sha256:dd3211f513f4a92ec1ec1876fc1dc3c686649c349d49523f5b5adbb0814e5960 \
+    --hash=sha256:2f510f34ae18a8d0958c53eec51ef84fd099f07c4c639676525acbcd7b5bd3ff \
     # via pylint
 jsonschema==3.2.0 \
     --hash=sha256:4e5b3cf8216f577bee9ce139cbe72eca3ea4f292ec60928ff24758ce626cd163 \