diff --git a/test-requirements.txt b/test-requirements.txt
index 6d428ede..33b420c5 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -141,9 +141,9 @@ importlib-metadata==2.0.0 \
     --hash=sha256:cefa1a2f919b866c5beb7c9f7b0ebb4061f30a8a9bf16d609b000e2dfaceb9c3 \
     --hash=sha256:77a540690e24b0305878c37ffd421785a6f7e53c8b5720d211b211de8d0e95da \
     # via -r ./test-requirements.txt, jsonschema, pluggy, pytest
-isort==4.3.21 \
-    --hash=sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1 \
-    --hash=sha256:6e811fcb295968434526407adb8796944f1988c5b65e8139058f2014cbe100fd \
+isort==5.6.4 \
+    --hash=sha256:dcab1d98b469a12a1a624ead220584391648790275560e1a43e54c5dceae65e7 \
+    --hash=sha256:dcaeec1b5f0eca77faea2a35ab790b4f3680ff75590bfcb7145986905aab2f58 \
     # via pylint
 jsonschema==3.2.0 \
     --hash=sha256:4e5b3cf8216f577bee9ce139cbe72eca3ea4f292ec60928ff24758ce626cd163 \