diff --git a/build-constraints.yaml b/build-constraints.yaml
index 93bb4f13..102b969a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1069,7 +1069,6 @@ packages:
         - cipher-aes
         - cipher-rc4
         - connection
-        - cprng-aes
         - cpu
         - cryptonite-openssl
         - crypto-pubkey-types
@@ -6624,8 +6623,6 @@ packages:
         - copilot-language < 0 # tried copilot-language-4.6, but its *library* requires the disabled package: copilot-theorem
         - copilot-libraries < 0 # tried copilot-libraries-4.6, but its *library* requires the disabled package: copilot-language
         - copilot-theorem < 0 # tried copilot-theorem-4.6, but its *library* requires random >=1.1 && < 1.3 and the snapshot contains random-1.3.1
-        - cprng-aes < 0 # tried cprng-aes-0.6.1, but its *library* requires bytestring < 0.12 and the snapshot contains bytestring-0.12.2.0
-        - cprng-aes < 0 # tried cprng-aes-0.6.1, but its *library* requires the disabled package: crypto-random
         - crypt-sha512 < 0 # tried crypt-sha512-0, but its *library* requires base >=4.5 && < 4.20 and the snapshot contains base-4.21.0.0
         - crypto-pubkey < 0 # tried crypto-pubkey-0.2.8, but its *library* requires the disabled package: crypto-numbers
         - crypto-pubkey < 0 # tried crypto-pubkey-0.2.8, but its *library* requires the disabled package: crypto-random