diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ee610ef..7fea4a8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        nim: [1.6.14, 2.0.14, stable]
+        nim: [2.0.14, stable]
     steps:
     - uses: actions/checkout@v2
     - uses: iffy/install-nim@v3
diff --git a/contractabi.nimble b/contractabi.nimble
index 919b1e3..c113968 100644
--- a/contractabi.nimble
+++ b/contractabi.nimble
@@ -3,8 +3,8 @@ author = "Contract ABI Authors"
 description = "ABI Encoding for Ethereum contracts"
 license = "MIT"
 
-requires "stint#3236fa68394f1e3a06e2bc34218aacdd2d675923"
-requires "stew >= 0.2.0"
-requires "nimcrypto >= 0.6.0 & < 0.7.0"
+requires "stint >= 0.8.0 & < 0.9.0"
+requires "stew >= 0.2.0 & < 0.3.0"
+requires "nimcrypto >= 0.6.2 & < 0.7.0"
 requires "questionable >= 0.10.10 & < 0.11.0"
 requires "upraises >= 0.1.0 & < 0.2.0"