diff --git a/Dockerfile b/Dockerfile
index 697b556..74151ac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
diff --git a/Dockerfile.3.14 b/Dockerfile.3.14
index e463526..b21bfea 100644
--- a/Dockerfile.3.14
+++ b/Dockerfile.3.14
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
diff --git a/Dockerfile.3.15 b/Dockerfile.3.15
index 6ef32e0..7a38627 100644
--- a/Dockerfile.3.15
+++ b/Dockerfile.3.15
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
diff --git a/Dockerfile.3.16 b/Dockerfile.3.16
index 709717d..415b94d 100644
--- a/Dockerfile.3.16
+++ b/Dockerfile.3.16
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
diff --git a/Dockerfile.3.17 b/Dockerfile.3.17
index 7bf5b13..104ee68 100644
--- a/Dockerfile.3.17
+++ b/Dockerfile.3.17
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
diff --git a/Dockerfile.3.18 b/Dockerfile.3.18
index 11ff14c..d459d70 100644
--- a/Dockerfile.3.18
+++ b/Dockerfile.3.18
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
diff --git a/Dockerfile.3.19 b/Dockerfile.3.19
index 9ad7dbe..017d5ca 100644
--- a/Dockerfile.3.19
+++ b/Dockerfile.3.19
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
diff --git a/Dockerfile.3.20 b/Dockerfile.3.20
index c11be4a..fa87cad 100644
--- a/Dockerfile.3.20
+++ b/Dockerfile.3.20
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
diff --git a/Dockerfile.edge b/Dockerfile.edge
index 6803205..394b9e5 100644
--- a/Dockerfile.edge
+++ b/Dockerfile.edge
@@ -72,6 +72,7 @@ RUN set -e; \
   apk --no-cache add bash
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu