diff --git a/centos-7/Dockerfile b/centos-7/Dockerfile
index ef6c1153ceaae0da60adec67780e27c01d2b0ac3..189f73a184d208a3dd2ff55502c07cdb3dcf28cb 100644
--- a/centos-7/Dockerfile
+++ b/centos-7/Dockerfile
@@ -259,7 +259,7 @@ RUN version=2.4.3 && \
     rm -rf pybind11-${version}*
 
 # Python 3.7
-RUN version=3.7.6 && \
+RUN version=3.7.7 && \
     yum install -y \
         openssl-devel \
         libffi-devel \
diff --git a/windows-1809/base/Dockerfile b/windows-1809/base/Dockerfile
index 9e58deeb4538bdfce719a5124ef31f31b7bb7fe5..42c52ebd4d055ca3dfbf08db457264055e9db034 100644
--- a/windows-1809/base/Dockerfile
+++ b/windows-1809/base/Dockerfile
@@ -20,7 +20,7 @@ RUN [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tl
         curl \
         7zip \
         wixtoolset; \
-    Must-Run choco install -y python --version 3.7.6; \
+    Must-Run choco install -y python --version 3.7.7; \
     $env:PATH = "\"$([Environment]::GetEnvironmentVariable('PATH', [EnvironmentVariableTarget]::User));$([Environment]::GetEnvironmentVariable('PATH', [EnvironmentVariableTarget]::Machine))\""; \
     Must-Run python -m pip --no-cache-dir install --no-warn-script-location wheel; \
     Must-Run choco install -y visualstudio2017buildtools; \