diff --git a/.drone.yml b/.drone.yml
index 30e006a..4ce4c1c 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -19,7 +19,7 @@ steps:
   pull: always
   image: golang:1.11-alpine
   commands:
-  - apk --no-cache add -U python3 git
+  - apk --no-cache add -U python3 python3-dev git gcc libc-dev libffi-dev openssl-dev
   - pip3 install --no-cache-dir --upgrade pip setuptools wheel six twine
   - go test -cover ./...
   environment:
diff --git a/docker/Dockerfile.linux.amd64 b/docker/Dockerfile.linux.amd64
index 7c6555b..5e121b9 100644
--- a/docker/Dockerfile.linux.amd64
+++ b/docker/Dockerfile.linux.amd64
@@ -5,7 +5,8 @@ LABEL maintainer="Drone.IO Community <drone-dev@googlegroups.com>" \
   org.label-schema.vendor="Drone.IO Community" \
   org.label-schema.schema-version="1.0"
 
-RUN apk add -U ca-certificates python3 && \
+RUN apk add -U ca-certificates python3 \
+    python3-dev gcc libc-dev libffi-dev openssl-dev && \
     rm -rf /var/cache/apk/* && \
     pip3 install --no-cache-dir --upgrade pip setuptools wheel six twine
 
diff --git a/docker/Dockerfile.linux.arm b/docker/Dockerfile.linux.arm
index a1bd541..73bd6ec 100644
--- a/docker/Dockerfile.linux.arm
+++ b/docker/Dockerfile.linux.arm
@@ -5,7 +5,8 @@ LABEL maintainer="Drone.IO Community <drone-dev@googlegroups.com>" \
   org.label-schema.vendor="Drone.IO Community" \
   org.label-schema.schema-version="1.0"
 
-RUN apk add -U ca-certificates python3 && \
+RUN apk add -U ca-certificates python3 \
+    python3-dev gcc libc-dev libffi-dev openssl-dev && \
     rm -rf /var/cache/apk/* && \
     pip3 install --no-cache-dir --upgrade pip setuptools wheel six twine
 
diff --git a/docker/Dockerfile.linux.arm64 b/docker/Dockerfile.linux.arm64
index 8c61475..27d1c4f 100644
--- a/docker/Dockerfile.linux.arm64
+++ b/docker/Dockerfile.linux.arm64
@@ -5,7 +5,8 @@ LABEL maintainer="Drone.IO Community <drone-dev@googlegroups.com>" \
   org.label-schema.vendor="Drone.IO Community" \
   org.label-schema.schema-version="1.0"
 
-RUN apk add -U ca-certificates python3 && \
+RUN apk add -U ca-certificates python3 \
+    python3-dev gcc libc-dev libffi-dev openssl-dev && \
     rm -rf /var/cache/apk/* && \
     pip3 install --no-cache-dir --upgrade pip setuptools wheel six twine