diff --git a/test-requirements-py2.txt b/test-requirements-py2.txt
index b8a5874..3126531 100644
--- a/test-requirements-py2.txt
+++ b/test-requirements-py2.txt
@@ -12,10 +12,9 @@ atomicwrites==1.3.0 \
     --hash=sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4 \
     --hash=sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6 \
     # via pytest
-attrs==18.2.0 \
-    --hash=sha256:10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69 \
-    --hash=sha256:ca4be454458f9dec299268d472aaa5a11f67a4ff70093396e1ceae9c76cf4bbb \
-    # via hypothesis, pytest
+attrs==19.1.0 \
+    --hash=sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79 \
+    --hash=sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399    # via hypothesis, pytest
 backports.lzma==0.0.13 \
     --hash=sha256:50829db66f0445442f6c796bba0ca62d1f87f54760c4682b6d1489e729a43744 ; python_version < "3.3"
 cffi==1.11.5 \
diff --git a/test-requirements.txt b/test-requirements.txt
index 1ed6e6f..582e8cb 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,10 +12,9 @@ atomicwrites==1.3.0 \
     --hash=sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4 \
     --hash=sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6 \
     # via pytest
-attrs==18.2.0 \
-    --hash=sha256:10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69 \
-    --hash=sha256:ca4be454458f9dec299268d472aaa5a11f67a4ff70093396e1ceae9c76cf4bbb \
-    # via hypothesis, pytest
+attrs==19.1.0 \
+    --hash=sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79 \
+    --hash=sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399    # via hypothesis, pytest
 cffi==1.11.5 \
     --hash=sha256:151b7eefd035c56b2b2e1eb9963c90c6302dc15fbd8c1c0a83a163ff2c7d7743 \
     --hash=sha256:1553d1e99f035ace1c0544050622b7bc963374a00c467edafac50ad7bd276aef \