diff --git a/requirements/dev.txt b/requirements/dev.txt
index f4ff0b44c9441a853d40ea52c6b986cf790b2afe..87d6c50fffac4a20757708fdce410423479ffa72 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -62,8 +62,6 @@ cryptography==3.4.7
     # via
     #   jwcrypto
     #   secretstorage
-cx-oracle==8.1.0
-    # via -r requirements/dev.in
 cycler==0.10.0
     # via matplotlib
 distlib==0.3.1
@@ -195,8 +193,6 @@ more-itertools==8.0.2
     # via
     #   jaraco.functools
     #   pytest-enabler
-mysqlclient==2.0.3
-    # via -r requirements/dev.in
 nodeenv==1.5.0
     # via pre-commit
 numba==0.52.0