diff --git a/.appveyor.yml b/.appveyor.yml
index 5878308..3c02124 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -35,6 +35,7 @@ build_script:
   - nimble install -y
   # testing only
   - nimble install https://github.com/status-im/NimYAML@#head # Cannot clone upstream https://github.com/flyx/NimYAML/issues/77
+  - nimble install stint
 
 test_script:
   - nimble test
diff --git a/.travis.yml b/.travis.yml
index 473abab..53f78ad 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,4 +32,5 @@ script:
   - nimble install -y
   # testing only
   - nimble install https://github.com/status-im/NimYAML@#head # Cannot clone upstream https://github.com/flyx/NimYAML/issues/77
+  - nimble install stint
   - nimble test
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index a476b52..3f1b170 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -142,6 +142,7 @@ steps:
       nimble refresh
       nimble install -y --depsOnly
       nimble install https://github.com/status-im/NimYAML@#head
+      nimble install stint
     displayName: 'Building dependencies (Posix)'
     condition: ne(variables['Agent.OS'], 'Windows_NT')
   - powershell: |
@@ -149,6 +150,7 @@ steps:
       nimble refresh
       nimble install -y --depsOnly
       nimble install https://github.com/status-im/NimYAML@#head
+      nimble install stint
     displayName: 'Building dependencies (Windows)'
     condition: eq(variables['Agent.OS'], 'Windows_NT')
   - bash: |