diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 7714121c73..4b4de37951 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -50,7 +50,7 @@ jobs:
   - script: brew update && brew install autoconf bison openssl
     displayName: "Install dependencies"
   - checkout: self
-    fetchDepth: 10
+    fetchDepth: 20
   - script: |
       autoconf
       ./configure --with-openssl-dir=/usr/local/opt/openssl
@@ -117,7 +117,7 @@ jobs:
     timeoutInMinutes: 20
     continueOnError: true # unstable. TODO: somehow use VM having these dependencies beforehand, and remove this `continueOnError`
   - checkout: self
-    fetchDepth: 10
+    fetchDepth: 20
   - script: |
       call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
       cinst winflexbison
@@ -150,7 +150,7 @@ jobs:
   steps:
 #   - script: vcpkg --triplet x64-windows install openssl readline zlib
   - checkout: self
-    fetchDepth: 10
+    fetchDepth: 20
   - script: |
       call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Preview\VC\Auxiliary\Build\vcvars64.bat"
       cinst winflexbison